The interpretation timeline
Genesis 2:9 Douay-Rheims

And the Lord God brought forth of the ground all manner of trees, fair to behold, and pleasant to eat of: the tree of life also in the midst of paradise: and the tree of knowledge of good and evil.

A.D. 45 – 1871 11 witnesses

Patristic

before A.D. 750
45
A.D.
c. 15 B.C.–A.D. 45
“XI. "We cannot therefore raise any question as to why it was ordained that all the different species of animals should be collected in the ark which was made at the time of the great deluge, while more were brought into the Paradise. For the ark was an emblem of the body, which of necessity therefore contained all the most tameable and ferocious evils of the passions and vices ; but the Paradise contained only the virtues : and the virtues do not receive anything savage or in short anything destitute of reason. And Moses also speaks very carefully, not representing the man who wa3 made after God's own image, but the man who was formed of clay, as the one who was placed in the paradise. Por the one who was made after the image of God, and stamped with the truth of God, does, as it appears to me, in no respect differ from the tree which bore as its fruit everlasting life. Por they are both imperishable, and have both been thought worthy of the most central position in the dominant part of man. Por it is said that " the tree of life is in the midst of the Paradise." But the other man, he of the composite and more earthly body, who has no justification in uncreated and simple nature, the cultivator of which is the only person who knows how to dwell in the house and in the courts of the Lord. Por Jacob is represented " as a plain man dwelling in a house," having a disposition full of ingenuity, and compounded and made up of all kinds of materials. It was natural therefore to place and firmly root the mind in the middle of the paradise, that is, of the universal world, havingin itself faculties which draw it in contrary directions, so that it should be kept in a state of doubt when called upon to discriminate as to what it should choose and what it should avoid, since if it chose the better part it would reap immor- Genesis xxv. 27, where the expression, however, ia "dwelling in tents." 426 PHILO JUMUS. tality and glory ; and if it chose the worse it would meet with reproach and death.”
Source
258
A.D.
Cyprian Patristic
c. A.D. 200–258
“The Church, setting forth the likeness of paradise, includes within her walls fruit-bearing trees, whereof that which does not bring forth good fruit is cut off and is cast into the fire. These trees she waters with four rivers, that is, with the four Gospels, wherewith, by a celestial inundation, she bestows the grace of saving baptism. Can any one water from the Church's fountains who is not within the Church? Can one impart those wholesome and saving draughts of paradise to any one if he is perverted, and of himself condemned, and banished outside the fountains of paradise, and has dried up and failed with the dryness of an eternal thirst?”
Source
389
A.D.
A.D. 329–390
“Christ is brought up to the tree and nailed to it—yet by the tree of life he restores us. Yes, he saves even a thief crucified with him; he wraps all the visible world in darkness.”
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“Behold still another form of kindness out of regard for this creature. (109c) You see, since he wanted him to live in the garden, he ordered various trees to come forth from the earth, that could both delight him with their appearance and be pleasing to the taste. "Every tree." it says, "beautiful to behold" that is, in appearance "and good to eat;" in short, they had the ability to please him through their appearance and to provide much pleasure through their taste, and by their great abundance offered considerable good cheer to the one in a position to enjoy them. You see, it says, "Every tree," whatever name you give it, he made come forth. Do you recognize here a life free of any care? Do you see a wonderful existence? Like some an gel, in fact, man lived this way on earth, wearing a body, yet being fortunately rid of any bodily needs; like a king adorned with scepter and crown and wearing his purple robe, (109d) he revelled in this life of freedom and great affluence in the garden. "The tree of life in the middle of the garden," the text goes on to say, "and the tree for knowing good and evil." After teaching us that, according to the Lord's command, the earth produced every tree, lovely to behold and good to taste, it says next: "The tree of life in the middle of the garden and the tree for knowing good and evil." The good Lord, you see, knowing as creator the harm that would in due time be likely to arise from this condition of great freedom, brought forth the tree of life in the middle of the garden, and the tree for knowing good and evil, since before long he would be imposing on him abstinence from the tree so that man might realize that he owed enjoyment of them to divine love and goodness, and that God was Lord (110a) and creator of his nature as of all visible things. Beforehand, therefore, he made mention of the tree, and next he tells us the names of the rivers and their division, so to say, and that from that source, which irrigated the garden, others led off in four directions and thus marked out the regions of the earth. Perhaps, however, those people who like to talk from their own wisdom do not concede again that these rivers are rivers, or these waters really waters, but propound some different interpretation to people ready to lend them their ears. Let us, however, I beg you, not be convinced by them, but block our ears against them; let us instead place our credence in Sacred Scripture and heed what is told us there; let it be our concern to lay its sound teachings in our soul and be scrupulously careful about them and about our life, (110b) so that our life may witness to the teachings and the teachings may declare the integrity of our life. After all, it will be of no avail for us to get teachings right if we neglect life; nor will we be able to gain any value for our salvation if we have life but neglect right teachings. It is necessary, you see, if we would wish to avoid hell and reach heaven, to be distinguished for both correctness of doctrine and attention to life. What good, after all, tell me, is a tree reaching to the sky and bearing leaves aplenty if it is devoid of fruit? So, too, with the Christian: correct doctrine is of no benefit unless one attends to the business of living. Accordingly Christ declared such people blessed: "Blessed is the one who does and teaches." [ Matt 5:19 ] I mean, far more dependable and trustworthy than the teaching of words is teaching in action. Such persons, (110c) in fact, even without uttering a word, or else without being seen, can teach others, in the one case by the silent witness of their appearance and in the other through the sense of hearing; they will enjoy God's goodwill in great measure, promoting as they do the glory of their Lord, not only through their own efforts but also through those who notice them. Such persons raise thanks and praise to the God of all on a thousand tongues and in many mouths; for it is not only those who know them, the witnesses of their life, that will admire them and their Lord, but strangers who hear about it from others, people living far away and distant foreigners, not only friends but foes as well, who will respect the eminence of their virtue. Such is its efficacy, you see, that it stops the mouths of adversaries and bridles their tongue. And just as people with poor sight (110d) flinch from looking at the sun's rays, likewise evil will never be able to confront virtue, but will yield ground, turn away, and admit defeat. Convinced then of this, let us hold fast to virtue, and pass our lives safely, taking care to avoid the slightest appearance of sin in word or deed. In this way, you see, we will never fall into the worst of sins if we avoid small ones; and with the passage of time we will be able under the influence of help from on high to attain the pinnacle of virtue, escape any future punishment, and gain eternal reward, through the grace and loving kindness of our Lord Jesus Christ, to whom with the Father and the Holy Spirit be glory, power and honor, now and forever, for ages of ages. Amen.”
Source
date
unknown
c. A.D. 550
“Thirdly, through the two trees which grew in the midst of Paradise, scripture shows that there are two states, one mortal and mutable, and one immortal and immutable. For the tree of the knowledge of good and evil is a type of this world as a school of discipline—and the tree of life is a type of the future state, in which neither death nor change has any power.”
Source

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
ויצמח AND HE CAUSED TO GROW — The verse speaks here only with reference to the garden (Genesis Rabbah 13:1) בתוך הגן IN THE MIDST OF THE GARDEN — means in the very centre of the garden.”
1270
A.D.
Ramban Jewish
1194–1270
“AND THE TREE OF LIFE IN THE MIDST OF THE GARDEN AND THE TREE OF KNOWLEDGE OF GOOD AND EVIL. Since Scripture says, And the tree of life in the midst of the garden, and does not say “in the garden,” and, moreover, since it says, But of the fruit of the tree which is in the midst of the garden, G-d hath said: ‘Ye shall not eat of it,’ and does not mention it or refer to it by another name, we must say, according to the simple meaning of Scripture, that it was a known place in the garden which was “in the midst” thereof. This is why Onkelos translated: “in the middle of the garden.” Thus according to Onkelos the tree of life and the tree of knowledge were both in the middle of the garden. And if so, we must say that in the middle of the garden there was the likeness of an enclosed garden-bed made which contained these two trees. This “middle” means near its middle for with respect to the exact middle, they have already said that no one knows the true central point except G-d alone. And the tree of life. This was a tree the fruit of which gave those who ate it long life. And the tree of the knowledge of good and evil. The commentators have said that the fruit thereof caused those who ate it to have a desire for sexual intercourse, and therefore Adam and Eve covered their nakedness after they ate of it [the fruit]. They quote a similar expression [where “good and evil” refers to such desire], the saying of Barzilai the Gileadite: Can I distinguish between good and bad? — meaning that this sexual desire was already removed from him. But in my opinion this interpretation is not correct since the serpent said, And ye shall be as ‘Elohim,’ knowing good and evil. here means angels, who have no such desire (R’dak). And if you will say that the serpent lied to her, now [Scripture itself attests to the truth of his statement in the verse], And the Eternal G-d said, ‘Behold man has become like one of us knowing good and evil.’ And the Rabbis have already said: “Three stated the truth and perished from the world, and these are: the serpent, the spies, and Doeg the Edomite., was true. Now since sexual desire is not spoken of in connection with the angels, the expression knowing good and evil cannot refer to such desire. The proper interpretation appears to me to be that man’s original nature was such that he did whatever was proper for him to do naturally, just as the heavens and all their hosts do, “faithful workers whose work is truth, and who do not change from their prescribed course,” and in whose deeds there is no love or hatred. Now it was the fruit of this tree that gave rise to will and desire, that those who ate it should choose a thing or its opposite, for good or for evil. This is why it was called ‘etz hada’ath’ (the tree of the knowledge) of good and evil, for da’ath in our language is used to express will. Thus in the language of the Rabbis: “They have taught this only with regards to one sheda’ato (whose will) is to return;” and “his will is to clear” [the produce in the store-room in his house before Passover]., In that case too he must search for leaven which lies under the produce even more than 30 days before Passover. And in the language of Scripture, Eternal, what is man ‘vateida’ehu,’ meaning that “Thou shouldst desire and want him;” yedaticha beshem,. meaning “I have chosen thee of all people.” Similarly, Barzilai’s expression, Ha’eda (Can I distinguish) between good and bad, means that he lost the power of thought, no longer choosing a thing or loathing it, and he would eat without feeling taste and hear singing without enjoying it. Now at that time sexual intercourse between Adam and his wife was not a matter of desire; instead, at the time of begetting offspring they came together and propagated. Therefore all the limbs were, in their eyes, as the face and hands, and they were not ashamed of them. But after he ate of the fruit of the tree of knowledge, he possessed the power of choice; he could now willingly do evil or good to himself or to others. This, on the one hand, is a godlike attribute; but as far as man is concerned, it is bad because through it, he has a will and desire. It is possible that Scripture intended to allude to this matter when it said, That G-d made man upright, but they have sought out many inventions. The “uprightness” is that man should keep to one right path, and the “seeking out of many inventions” is man’s search for deeds which change according to his choice. Now when the Holy One, blessed be He, commanded Adam concerning the tree, that he should not eat of its fruit, He did not inform him that it has this quality. He told him without any qualification, But of the fruit of the tree which is in the midst of the garden, that is to say, the one that is known by its central position, thou shalt not eat thereof. And this was what the woman said to the serpent. And the verse which states, But of the tree of the knowledge of good and evil, thou shalt not eat of it, mentions it to us by its true name.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“And out of the ground made the Lord God to grow every tree that is pleasant to the sight, and good for food,.... That is, out of the ground of the garden of Eden; and this was done on the third day, when the whole earth brought forth grass, herbs, and trees: but a peculiar spot of ground was fixed on for man, and stocked with trees of all sorts for his use, not only to bear fruit, which would be suitable and agreeable food for him, but others also, which would yield him delight to look at; such as the tall cedars for their loftiness, spreading branches and green leaves, with many others; so that not only there were trees to gratify the senses of tasting and smelling, but that of sight; and such a sightly goodly tree to look at was the tree of knowledge, Gen 3:6. These trees may be an emblem of the saints, the trees of righteousness, the planting of the Lord, and made to grow by him through the influence of his Spirit and grace; and whom he plants in his gardens, the churches, and transplants into the heavenly paradise, and are often compared to palm trees, cedars, olive trees, pomegranates, &c. the tree of life also in the midst of the garden; set there as in the most excellent place, where it might be most conspicuous, and to be come at; for before Adam sinned, as there was no prohibition of his eating of it, so there was no obstruction to it; and as he had a grant to eat of it, with the other trees, it was designed for his use, to support and maintain his natural life, which would have been continued, had he persisted in his obedience and state of innocence, and very probably by means of this chiefly: hence the son of Sirach calls it the tree of immortality,"The knowledge of the commandments of the Lord is the doctrine of life: and they that do things that please him shall receive the fruit of the tree of immortality.'' (Sirach 19:19)and it might be also a sign, token, and symbol to him of his dependence on God; that he received his life from him; and that this was preserved by his blessing and providence, and not by his own power and skill; and that this would be continued, provided he transgressed not the divine law: and it seems to have a further respect, even to eternal life; by Christ; for though it might not be a symbol of that life to Adam in his state of innocence, yet it became so after his fall: hence Christ is sometimes signified by the tree of life, Pro 3:18 who is not only the author of natural and spiritual life, but the giver of eternal life; the promise of it is in him, and the blessing itself; he has made way for it by his obedience, sufferings, and death, and is the way unto it; it is in his gift, and he bestows it on all his people, and it will lie greatly in the enjoyment of him. The situation of this tree in the midst of the garden well agrees with him who is in the midst of his church and people, Rev 1:13 stands open, is in sight, and is accessible to them all now, who may come to him, and partake of the fruits and blessings of his grace, which are many, constant, and durable, Rev 22:2 and who will be seen and enjoyed by all, to all eternity: and the tree of knowledge of good and evil; so called, either with respect to God, who by it tried man, when he had made him, whether he would be good or evil; but this he foreknew: rather therefore with respect to man, not that the eating the fruit of it could really give him such knowledge, nor did he need it; for by the law of nature inscribed on his heart, he knew the difference between good and evil, and that what God commanded was good, and what he forbid was evil: but either it had its name from the virtue Satan ascribed to it, Gen 3:5 or from the sad event following on man's eating the fruit of it, whereby he became experimentally sensible of the difference between good and evil, between obedience and disobedience to the will of God; he found by sad experience what good he had lost, or might have enjoyed, and what evil he had brought on himself and his posterity, he might have avoided. What this tree was is not certain; there are various conjectures about it, and nothing else can be come at concerning it. Some take it to be the fig tree, as Jarchi, and some in Aben Ezra on Gen 3:6 because fig leaves were at hand, and immediately made use of on eating the fruit of it; some the vine, and particularly the black grape, as in the book of Zohar (d); others, as Baal Hatturim on Gen 1:29 the pome citron, or citron apple tree (e); others, the common apple, as the author of the old Nizzechon (f), and which is the vulgar notion; evil and an apple being called by the same Latin word "malum": in the Talmud (g), some say it was the vine, some the fig tree, and others wheat (h): the Mahometans say it was a tree, called by the Africans by the name of Musa (i). (d) In Exod. fol. 59. 4. & in Numb. fol. 53. 3. So in Bereshit Rabba, sect. 12. fol. 155. 2. (e) Vid. Caphtor Uperah, fol. 49. 1. & 60. 2. & 63. 2. (f) P. 147. Ed. Wagenseil. (g) T. Bab. Beracot, fol. 40. 1. & Sanhedrin, fol. 70. 1. 2. So in Tzeror Hammor, fol. 15. 2. Tikkune Zohar correct. 24. fol. 68. (h) Vid. Bartenora in Misn. Roshhashanah, c. 1. sect. 2. (i) Leo. African. Desriptio Africae, c. 9. p. 772.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“Every tree that is pleasant to the sight, etc. - If we take up these expressions literally, they may bear the following interpretation: the tree pleasant to the sight may mean every beautiful tree or plant which for shape, color, or fragrance, delights the senses, such as flowering shrubs, etc. And good for food - All fruit-bearing trees, whether of the pulpy fruits, as apples, etc., or of the kernel or nut kind, such as dates, and nuts of different sorts, together with all esculent vegetables. The tree of life - חיים chaiyim; of lives, or life-giving tree, every medicinal tree, herb, and plant, whose healing virtues are of great consequence to man in his present state, when through sin diseases of various kinds have seized on the human frame, and have commenced that process of dissolution which is to reduce the body to its primitive dust. Yet by the use of these trees of life - those different vegetable medicines, the health of the body may be preserved for a time, and death kept at a distance. Though the exposition given here may be a general meaning for these general terms, yet it is likely that this tree of life which was placed in the midst of the garden was intended as an emblem of that life which man should ever live, provided he continued in obedience to his Maker. And probably the use of this tree was intended as the means of preserving the body of man in a state of continual vital energy, and an antidote against death. This seems strongly indicated from Gen 3:22. And the tree of knowledge of good and evil - Considering this also in a merely literal point of view, it may mean any tree or plant which possessed the property of increasing the knowledge of what was in nature, as the esculent vegetables had of increasing bodily vigor; and that there are some ailments which from their physical influence have a tendency to strengthen the understanding and invigorate the rational faculty more than others, has been supposed by the wisest and best of men; yet here much more seems intended, but what is very difficult to be ascertained. Some very eminent men have contended that the passage should be understood allegorically! and that the tree of the knowledge of good and evil means simply that prudence, which is a mixture of knowledge, care, caution, and judgment, which was prescribed to regulate the whole of man's conduct. And it is certain that to know good and evil, in different parts of Scripture, means such knowledge and discretion as leads a man to understand what is fit and unfit, what is not proper to be done and what should be performed. But how could the acquisition of such a faculty be a sin? Or can we suppose that such a faculty could be wanting when man was in a state of perfection? To this it may be answered: The prohibition was intended to exercise this faculty in man that it should constantly teach him this moral lesson, that there were some things fit and others unfit to be done, and that in reference to this point the tree itself should be both a constant teacher and monitor. The eating of its fruit would not have increased this moral faculty, but the prohibition was intended to exercise the faculty he already possessed. There is certainly nothing unreasonable in this explanation, and viewed in this light the passage loses much of its obscurity. Vitringa, in his dissertation Deuteronomy arbore prudentiae in Paradiso, ejusque mysterio, strongly contends for this interpretation. See more on Gen 3:6 (note).”
Source
1849
A.D.
1774–1849
“The tree of life. So called, because it had that quality, that by eating of the fruit of it, man would have been preserved in a constant state of health, vigour, and strength, and would not have died at all. The tree of knowledge. To which the deceitful serpent falsely attributed the power of imparting a superior kind of knowledge beyond that which God was pleased to give. (Challoner) — Of what species these two wonderful trees were, the learned are not agreed. The tree of knowledge, could not communicate any wisdom to man; but, by eating of its forbidden fruit, Adam dearly purchased the knowledge of evil, to which he was before a stranger. Some say it was the fig-tree, others an apple-tree, Canticle of Canticles viii. 5. But it probably agreed with no species of trees with which we are acquainted, nor was there perhaps any of the same kind in paradise. (Tirinus)”
Source
1871
A.D.
1871
“tree of life--so called from its symbolic character as a sign and seal of immortal life. Its prominent position where it must have been an object of daily observation and interest, was admirably fitted to keep man habitually in mind of God and futurity. tree of the knowledge of good and evil--so called because it was a test of obedience by which our first parents were to be tried, whether they would be good or bad, obey God or break His commands.”
Source
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.