The interpretation timeline
Genesis 4:3 Douay-Rheims

And it came to pass after many days, that Cain offered, of the fruits of the earth, gifts to the Lord.

A.D. 45 – 1871 11 witnesses

Patristic

before A.D. 750
45
A.D.
c. 15 B.C.–A.D. 45
“(60) Why Cain after some days offers up the first-fruits of his fruits, but when it is said that "Abel offered up first-fruits of the first-born of his flock and of the fat," "after some days" is not added? (#Ge 4:3-4). Moses here intimates the difference between a lover of himself, and one who is thoroughly devoted to God; for the one took to himself the first-fruits of his fruits, and very impiously looked upon God as worthy only of the secondary and inferior offerings; for the expression, "after some days," implies that he did not do so immediately; and when it is said that he offered of the fruits, that intimates that he did not offer of the best fruits which he had, and herein displays his iniquity. But the other, without any delay, offered up the first-born and eldest of all his flocks, in order that in this the Father might not be treated unworthily.”
Source
99
A.D.
Clement of Rome Patristic
d. A.D. 99
“Every kind of honour and happiness was bestowed upon you, and then was fulfilled that which is written, "My beloved ate and drank, and was enlarged and became fat, and kicked." [Deuteronomy 32:15] Hence flowed emulation and envy, strife and sedition, persecution and disorder, war and captivity. So the worthless rose up against the honoured, those of no reputation against such as were renowned, the foolish against the wise, the young against those advanced in years. For this reason righteousness and peace are now far departed from you, inasmuch as every one abandons the fear of God, and has become blind in His faith, neither walks in the ordinances of His appointment, nor acts a part becoming a Christian, but walks after his own wicked lusts, resuming the practice of an unrighteous and ungodly envy, by which death itself entered into the world. [Wisdom 2:24] For thus it is written: "And it came to pass after certain days, that Cain brought of the fruits of the earth a sacrifice unto God; and Abel also brought of the firstlings of his sheep, and of the fat thereof. And God had respect to Abel and to his offerings, but Cain and his sacrifices He did not regard. And Cain was deeply grieved, and his countenance fell. And God said to Cain, Why are you grieved, and why is your countenance fallen? If you offer rightly, but do not divide rightly, have you not sinned? Be at peace: your offering returns to yourself, and you shall again possess it. And Cain said to Abel his brother, Let us go into the field. And it came to pass, while they were in the field, that Cain rose up against Abel his brother, and slew him." [Genesis 4:3-8] You see, brethren, how envy and jealousy led to the murder of a brother. Through envy, also, our father Jacob fled from the face of Esau his brother [Genesis 27:41-45]. Envy made Joseph be persecuted unto death, and to come into bondage. [Genesis 37:18-28] Envy compelled Moses to flee from the face of Pharaoh king of Egypt, when he heard these words from his fellow-countryman, "Who made you a judge or a ruler over us? Will you kill me, as you killed the Egyptian yesterday?" [Exodus 2:14] On account of envy, Aaron and Miriam had to make their abode without the camp. [Numbers 12:14-15] Envy brought down Dathan and Abiram alive to Hades, through the sedition which they excited against God's servant Moses. [Numbers 16:33] Through envy, David not only underwent the hatred of foreigners, but was also persecuted by Saul king of Israel. [1 Samuel 21:10-15]”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“Consider how the Lord of nature added knowledge to conscience. After all, who brought this to our understanding? It was none other than knowledge associated with conscience. The text says, "He brought an offering of the fruits of the earth to the Lord." He knew and understood that he should offer from his own possessions some produce to God as to his master. not because God needs them, but for the purpose of demonstrating his gratitude as being himself a beneficiary of such kindness. God, you see, is proof against need, and depends on nothing we have to offer; but in his ineffable love he shows considerateness for us, and for the sake of our salvation he allows these things to happen so that knowledge of the Lord may be for the human race a school of virtue.”
Source
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“[The pagans say, "The Christians] censure the ceremonies of sacrifice, the victims, incense and the rest, which are used in temple worship. Yet the same ceremonies of sacrifice were originated by themselves or by the god they worship, in primitive times, when a god was assumed to need their offerings of first fruits." This question is evidently derived from that passage in our Scriptures that tells of Cain making an offering to God of the fruits of the earth and Abel of the firstlings of his flocks. We answer that the conclusion to be drawn from it is that sacrifice is a very ancient custom, because our true and sacred Books warn us that it is not to be offered except to the one true God. But God does not need sacrifices, as is most clearly expressed in the same sacred Books: "I said to the Lord, thou art my God, for thou hast no need of my goods," because in accepting or refusing or receiving them he is looking only to man's good. God does not derive any benefit from our worship, but we do.”
Source

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
מפרי האדמה OF THE FRUIT OF THE GROUND —of the worst fruits (Genesis Rabbah 22:5); there is an Agada which says that it was linseed (Midrash Tanchuma, Bereshit 9).”
1270
A.D.
Ramban Jewish
1194–1270
“AND CAIN BROUGHT OF THE FRUIT OF THE GROUND AN OFFERING UNTO THE ETERNAL. 4. AND ABEL, HE ALSO BROUGHT. These men [Cain and Abel] understood the great secret of the sacrifices and the meal-offerings. So also did Noah, [who likewise offered sacrifices]. Our Rabbis have said that the first man also sacrificed a bullock. This should close the mouth of those who speak foolishness concerning the reason of the sacrifices. I will yet intimate a great principle concerning this matter with the will of the Holy One, blessed be He.”
Source

Post-Reformation

c. 1650 – 1900
1714
A.D.
Matthew Henry Reformed
1662–1714
“Here we have, I. The devotions of Cain and Abel. In process of time, when they had made some improvement in their respective callings (Heb. At the end of days, either at the end of the year, when they kept their feast of in-gathering or perhaps an annual fast in remembrance of the fall, or at the end of the days of the week, the seventh day, which was the sabbath) - at some set time, Cain and Abel brought to Adam, as the priest of the family, each of them an offering to the Lord, for the doing of which we have reason to think there was a divine appointment given to Adam, as a token of God's favour to him and his thoughts of love towards him and his, notwithstanding their apostasy. God would thus try Adam's faith in the promise and his obedience to the remedial law; he would thus settle a correspondence again between heaven and earth, and give shadows of good things to come. Observe here, 1. That the religious worship of God is no novel invention, but an ancient institution. It is that which was from the beginning (Jo1 1:1); it is the good old way, Jer 6:16. The city of our God is indeed that joyous city whose antiquity is of ancient days, Isa 23:7. Truth got the start of error, and piety of profaneness. 2. That is a good thing for children to be well taught when they are young, and trained up betimes in religious services, that when they come to be capable of acting for themselves they may, of their own accord, bring an offering to God. In this nurture of the Lord parents must bring up their children, Gen 18:19; Eph 6:4. 3. That we should every one of us honour God with what we have, according as he has prospered us. According as their employments and possessions were, so they brought their offering. See Co1 16:1, Co1 16:2. Our merchandize and our hire, whatever they are, must be holiness to the Lord, Isa 23:18. He must have his dues of it in works of piety and charity, the support of religion and the relief of the poor. Thus we must now bring our offering with an upright heart; and with such sacrifices God is well pleased. 4. That hypocrites and evil doers may be found going as far as the best of God's people in the external services of religion. Cain brought an offering with Abel; nay, Cain's offering is mentioned first, as if he were the more forward of the two. A hypocrite may possibly hear as many sermons, say as many prayers, and give as much alms, as a good Christian, and yet, for want of sincerity, come short of acceptance with God. The Pharisee and the publican went to the temple to pray, Luk 18:10. II. The different success of their devotions. That which is to be aimed at in all acts of religion is God's acceptance: we speed well if we attain this, but in vain do we worship if we miss of it, Co2 5:9. Perhaps, to a stander-by, the sacrifices of Cain and Abel would have seemed both alike good. Adam accepted them both, but God, who sees not as man sees, did not. God had respect to Abel and to his offering, and showed his acceptance of it, probably by fire from heaven; but to Cain and his offering he had not respect. We are sure there was a good reason for this difference; the Governor of the world, though an absolute sovereign, does not act arbitrarily in dispensing his smiles and frowns. 1. There was a difference in the characters of the persons offering. Cain was a wicked man, led a bad life, under the reigning power of the world and the flesh; and therefore his sacrifice was an abomination to the Lord (Pro 15:8), a vain oblation, Isa 1:13. God had no respect to Cain himself, and therefore no respect to his offering, as the manner of the expression intimates. But Abel was a righteous man; he is called righteous Abel (Mat 23:35); his heart was upright and his life was pious; he was one of those whom God's countenance beholds (Psa 11:7) and whose prayer is therefore his delight, Pro 15:8. God had respect to him as a holy man, and therefore to his offering as a holy offering. The tree must be good, else the fruit cannot be pleasing to the heart-searching God. 2. There was a difference in the offerings they brought. It is expressly said (Heb 11:4), Abel's was a more excellent sacrifice than Cain's: either (1.) In the nature of it. Cain's was only a sacrifice of acknowledgment offered to the Creator; the meat-offerings of the fruit of the ground were no more, and, for aught I know, they might be offered in innocency. But Abel brought a sacrifice of atonement, the blood whereof was shed in order to remission, thereby owning himself a sinner, deprecating God's wrath, and imploring his favour in a Mediator. Or, (2.) In the qualities of the offering. Cain brought of the fruit of the ground, any thing that came next to hand, what he had not occasion for himself or what was not marketable. But Abel was curious in the choice of his offering: not the lame, nor the lean, nor the refuse, but the firstlings of the flock - the best he had, and the fat thereof - the best of those best. Hence the Hebrew doctors give it for a general rule that every thing that is for the name of the good God must be the goodliest and best. It is fit that he who is the first and best should have the first and best of our time, strength, and service. 3. The great difference was this, that Abel offered in faith, and Cain did not. There was a difference in the principle upon which they went. Abel offered with an eye to God's will as his rule, and God's glory as his end, and in dependence upon the promise of a Redeemer; but Cain did what he did only for company's sake, or to save his credit, not in faith, and so it turned into sin to him. Abel was a penitent believer, like the publican that went away justified: Cain was unhumbled; his confidence was within himself; he was like the Pharisee who glorified himself, but was not so much as justified before God. III. Cain's displeasure at the difference God made between his sacrifice and Abel's. Cain was very wroth, which presently appeared in his very looks, for his countenance fell, which bespeaks not so much his grief and discontent as his malice and rage. His sullen churlish countenance, and a down-look, betrayed his passionate resentments: he carried ill-nature in his face, and the show of his countenance witnessed against him. This anger bespeaks, 1. His enmity to God, and the indignation he had conceived against him for making such a difference between his offering and his brother's. He should have been angry at himself for his own infidelity and hypocrisy, by which he had forfeited God's acceptance; and his countenance should have fallen in repentance and holy shame, as the publican's, who would not lift up so much as his eyes to heaven, Luk 18:13. But, instead of this, he flies out against God, as if he were partial and unfair in distributing his smiles and frowns, and as if he had done him a deal of wrong. Note, It is a certain sign of an unhumbled heart to quarrel with those rebukes which we have, by our own sin, brought upon ourselves. The foolishness of man perverteth his way, and then, to make bad worse, his heart fretteth against the Lord, Pro 19:3. 2. His envy of his brother, who had the honour to be publicly owned. Though his brother had no thought of having any slur put upon him, nor did now insult over him to provoke him, yet he conceived a hatred of him as an enemy, or, which is equivalent, a rival. Note, (1.) It is common for those who have rendered themselves unworthy of God's favour by their presumptuous sins to have indignation against those who are dignified and distinguished by it. The Pharisees walked in this way of Cain, when they neither entered into the kingdom of God themselves nor suffered those that were entering to go in, Luk 11:52. Their eye is evil, because their master's eye and the eye of their fellow-servants are good. (2.) Envy is a sin that commonly carries with it both its own discovery, in the paleness of the looks, and its own punishment, in the rottenness of the bones.”
1771
A.D.
John Gill Reformed
1697–1771
“And in process of time it came to pass,.... Or "at the end of days" (c); which some understand of the end of seven days, at the end of the week, or on the seventh day, which they suppose to be the sabbath day, these sons of Adam brought their offerings to the Lord: but this proceeds upon an hypothesis not sufficiently established, that the seventh day sabbath was now appointed to be observed in a religious way; rather, according to Aben Ezra, it was at the end of the year; So "after days" in Jdg 11:4 is meant after a year; and which we there render, as here, "in process of time". This might be after harvest, after the fruits of the earth were gathered in, and so a proper season to bring an offering to the Lord, in gratitude for the plenty of good things they had been favoured with; as in later times, with the Israelites, there was a feast for the ingathering of the fruits of the earth, Exo 23:16. The Targum of Jonathan fixes this time to the fourteenth of Nisan, as if it was the time of the passover, a feast instituted two thousand years after this time, or thereabout; and very stupidly one of the Jewish writers (d) observes, that"the night of the feast of the passover came, and Adam said to his sons, on this night the Israelites will bring the offerings of the passovers, offer ye also before your Creator." That Cain brought of the fruit of the ground an offering unto the Lord; corn, herbs, seeds, &c. the Targum of Jonathan says it was flax seed; so Jarchi makes mention of an "agadah" or exposition, which gives the same sense; and another of their writers (e) observes, that Cain brought what was left of his food, or light and trifling things, flax or hemp seed. This he brought either to his father, as some think, being priest in his family; or rather he brought and offered it himself at the place appointed for religious worship, and for sacrifices; so Aben Ezra, he brought it to the place fixed for his oratory. It is highly probable it was at the east of the entrance of the garden of Eden, where the Shechinah, or the divine Majesty, was, and appeared in some remarkable manner. (c) "in fine dierum", Pagninus, Montanus; "a fine dierum", Schmidt. (d) Pirke Eliezer, c. 21. (e) Ib. Vid. Tzeror Hammor, fol. 8. 2.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“In process of time - מקץ ימים mikkets yamim, at the end of days. Some think the anniversary of the creation to be here intended; it is more probable that it means the Sabbath, on which Adam and his family undoubtedly offered oblations to God, as the Divine worship was certainly instituted, and no doubt the Sabbath properly observed in that family. This worship was, in its original institution, very simple. It appears to have consisted of two parts: 1. Thanksgiving to God as the author and dispenser of all the bounties of nature, and oblations indicative of that gratitude. 2. Piacular sacrifices to his justice and holiness, implying a conviction of their own sinfulness, confession of transgression, and faith in the promised Deliverer. If we collate the passage here with the apostle's allusion to it, Heb 11:4, we shall see cause to form this conclusion. Cain brought of the fruit of the ground an offering - מנחה minchah, unto the Lord. The word minchah is explained, Lev 2:1, etc., to be an offering of fine flour, with oil and frankincense. It was in general a eucharistic or gratitude offering, and is simply what is implied in the fruits of the ground brought by Cain to the Lord, by which he testified his belief in him as the Lord of the universe, and the dispenser of secular blessings.”
Source
1863
A.D.
1796–1863
“Favorable regard and acceptance are meant. 8t Jerome, after Theodotion, conjectures that God manifested His good pleasure by sending fire from on high. "God giving testimony to His gifts." Heb.”
1871
A.D.
1871
“in process of time--Hebrew, "at the end of days," probably on the Sabbath. brought . . . an offering unto the Lord--Both manifested, by the very act of offering, their faith in the being of God and in His claims to their reverence and worship; and had the kind of offering been left to themselves, what more natural than that the one should bring "of the fruits of the ground," and that the other should bring "of the firstlings of his flock and the fat thereof" [Gen 4:4].”
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.