The interpretation timeline
Genesis 2:10 Douay-Rheims

And a river went out of the place of pleasure to water paradise, which from thence is divided into four heads.

A.D. 45 – 1875 9 witnesses 10 excerpts

Patristic

before A.D. 750
45
A.D.
c. 15 B.C.–A.D. 45
“XXXVII. On which account it is said in Genesis, " And a fountain went up from the earth, and watered all the face of the earth." For since nature has allotted the most excellent portion of the whole body, namely the face, to the outward senses, therefore the fountain which goes up from the superior part, being diffused over various parts, and sending up its streams like so many water-courses as high as the face, by their means conducts the faculties to each of the organs of the outward senses. In this way in truth, it is that the word of God irrigates the virtues ; for that is the beginning and the fountain of all good actions. And the lawgiver shows this, when he says, " And a river went out of Eden to water the Paradise ; and from thence it is divided into four heads. "f For there are four generic virtues : prudence, courage, temperance, and justice. And of these, every single one is a princess aud a ruler ; and he who has acquired them is, from the moment of the acquisition, a ruler and a king, even if he has no abundance of any kind of treasure ; for the meaning of the expression, ''it is divided into four heads," is £ nor distance ; but virtue exhibits the pre-eminence and the power. And these spring from the word of God as from one root, which he compares to a river, on account of the unceasing and everlasting flow of salutary words and doctrines, by which it increases and nourishes the souls that love God. XXXVIII. And of what kind they are, he proceeds to Genesis ii. 6. t Genesis ii. 1 0. X Here again is an hiatu3, which Mangey does not attempt to supply. show in a few words, deriving bis explanation from the natural things of art ; for he introduces Agar as filling a leathern bag with water, and giving her child drink. Now Agar is the handmaid of Sarah, the new dispensation of perfect virtue ; and she is correctly represented so. Since, therefore, having come to the depth of knowledge, which Moses here calls a well, she draws up (filling the soul as if it were a vessel) the doctrines and speculations which she is in pursuit of, wishing to feed her child on the things on which she herself is fed. And Moses, by her child, means, a soul which has lately learnt to desire instruction, arid which has, in a manner, just been born to learn. In reference to which, the boy, when he has grown up to man's estate, becomes a sophist, whom Moses calls an archer ;f for whatever argument he applies his mind to, at that, as at a target, he shoots all his reasons, as an archer shoots his arrows.”
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
303
A.D.
c. A.D. 250–303
“Now is manifested the reason of the truth why the fourth day is called the Tetras, why we fast even to the ninth hour, or even to the evening, or why there should be a passing over even to the next day. Therefore this world of ours is composed of four elements-fire, water, heaven, earth. These four elements, therefore, form the quaternion of times or seasons. The sun, also, and the moon constitute throughout the space of the year four seasons-of spring, summer, autumn, winter; and these seasons make a quaternion. And to proceed further still from that principle, lo, there are four living creatures before God's throne, four Gospels, four rivers flowing in paradise; four generations of people from Adam to Noah, from Noah to Abraham, from Abraham to Moses, from Moses to Christ the Lord, the Son of God; and four living creatures, viz., a man, a calf, a lion, an eagle; and four rivers, the Pison, the Gihon. the Tigris, and the Euphrates. The man Christ Jesus, the originator of these things whereof we have above spoken, was taken prisoner by wicked hands, by a quaternion of soldiers. Therefore on account of His captivity by a quaternion, on account of the majesty of His works,-that the seasons also, wholesome to humanity, joyful for the harvests, tranquil for the tempests, may roll on,-therefore we make the fourth day a station or a supernumerary fast.”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“Awe-inspiring, in truth, are the mysteries of the church. Awesome truth is its altar. A fountain sprang up out of paradise, sending forth not only visible streams but also spiritual streams arising as a fountain from this high tableland. Alongside this fountain there have grown, not willows without fruit but abundant trees reaching to heaven itself, with fruit ever in season and remaining still incorrupt. If someone is intensely hot, let him come to this fountain and cool down this feverish heat. It dispels parching heat and gently cools all things that are very hot—not only those literally inflamed by the sun's heat but also those set on fire by sin's burning arrows. It does so because it takes its beginning from above and has its source from there, and from there it is fed. Many are the streams of this fountain, streams that the Paraclete sends forth; and the Son becomes its custodian, not keeping its channel open with a mattock but by making our hearts receptive.”
Source
“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.”
Source
749
A.D.
John of Damascus Patristic
A.D. 676–749
“Then there is the ocean that encircles the entire earth like a sort of river and to which it seems to me that Scripture referred when it said that "a river flowed out of paradise." It has sweet potable water and supplies the seas, but because the water remains stagnant in the seas for a long time it becomes brackish. The sun and the waterspouts are constantly drawing up the less dense water, and from this the clouds are formed and the rain comes, the water becoming sweet by filtration. This ocean is divided into four heads, of four rivers. The name of the first is Pishon; this is the Ganges of India. The name of the second is Gehon; this is the Nile, which comes down from Ethiopia into Egypt. The name of the third is Tigris, and of the fourth, Euphrates.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“And a river went out of Eden to water the garden,.... Before man was created, as Aben Ezra observes, this river went out of Eden and watered it on every side; but what river is here meant, is hard to say. It is more generally thought to be the river Euphrates, when that and the Tigris met, and became one stream or river, and as such entered and passed through Eden; and as it was parted into four rivers afterwards, in two of which they retained their names: the learned Reland (k) thinks, this river is now lost; but the learned writer before referred to thinks, as has been observed, that it is the river Jordan; see note on Gen 2:8 and which, as Pliny (l) says, was a very pleasant river: and from thence it was parted, and became into four heads; after it had passed through Eden, and the garden in it, watering it, it divided into four parts or heads of water, or four chief principal rivers, hereafter mentioned; and which circumstance the above writer thinks makes it the more probable to be the river Jordan, which and with the four rivers are spoken of together by the son of Sirach, in the Apocrypha:"25 He filleth all things with his wisdom, as Phison and as Tigris in the time of the new fruits. 26 He maketh the understanding to abound like Euphrates, and as Jordan in the time of the harvest. 27 He maketh the doctrine of knowledge appear as the light, and as Geon in the time of vintage.'' (Sirach 24)of which in the following verses. This river may be an emblem of the everlasting love of God, that pure river of water of life, which springs from the throne of God, and of the Lamb, from divine sovereignty, and not from the faith, love, and obedience of man; that river, the streams whereof make glad the city of God, and which water the garden, the church, revive its plants, and make it fruitful and delightful; the four heads or branches of which are eternal election of God, particular redemption by Christ, regeneration and sanctification by the Spirit, and eternal life and happiness, as the free gift of God through Christ; see Psa 46:4. (k) Dissert. de Paradiso, p. 53. (l) Nat. Hist. l. 5. c. 15.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“A river went out of Eden, etc. - It would astonish an ordinary reader, who should be obliged to consult different commentators and critics on the situation of the terrestrial Paradise, to see the vast variety of opinions by which they are divided. Some place it in the third heaven, others in the fourth; some within the orbit of the moon, others in the moon itself; some in the middle regions of the air, or beyond the earth's attraction; some on the earth, others under the earth, and others within the earth; some have fixed it at the north pole, others at the south; some in Tartary, some in China; some on the borders of the Ganges, some in the island of Ceylon; some in Armenia, others in Africa, under the equator; some in Mesopotamia, others in Syria, Persia, Arabia, Babylon, Assyria, and in Palestine; some have condescended to place it in Europe, and others have contended it either exists not, or is invisible, or is merely of a spiritual nature, and that the whole account is to be spiritually understood! That there was such a place once there is no reason to doubt; the description given by Moses is too particular and circumstantial to be capable of being understood in any spiritual or allegorical way. As well might we contend that the persons of Adam and Eve were allegorical, as that the place of their residence was such. The most probable account of its situation is that given by Hadrian Reland. He supposes it to have been in Armenia, near the sources of the great rivers Euphrates, Tigris, Phasis, and Araxes. He thinks Pison was the Phasis, a river of Colchis, emptying itself into the Euxine Sea, where there is a city called Chabala, the pronunciation of which is nearly the same with that of Havilah, or חוילה Chavilah, according to the Hebrew, the vau ו being changed in Greek to beta β. This country was famous for gold, whence the fable of the Golden Fleece, attempted to be carried away from that country by the heroes of Greece. The Gihon he thinks to be the Araxes, which runs into the Caspian Sea, both the words having the same signification, viz., a rapid motion. The land of Cush, washed by the river, he supposes to be the country of the Cussaei of the ancients. The Hiddekel all agree to be the Tigris, and the other river Phrat, or פרת Perath, to be the Euphrates. All these rivers rise in the same tract of mountainous country, though they do not arise from one head.”
Source
1849
A.D.
1774–1849
“A river, &c. Moses gives many characteristics of Paradise, inviting us, as it were, to search for it; and still we cannot certainly discover where it is, or whether it exist at all at present, in a state of cultivation. We must therefore endeavour to find the mystic Paradise, Heaven and the true Church; the road to which, though more obvious, is too frequently mistaken. See St. Augustine, City of God xiii. 21.; Proverbs iii. 18. (Haydock)”
Source
1875
A.D.
Keil & Delitzsch Lutheran
1861–1875
“"And there was a river going out of Eden, to water the garden; and from thence it divided itself, and became four heads;" i.e., the stream took its rise in Eden, flowed through the garden to water it, and on leaving the garden was divided into four heads or beginnings of rivers, that is, into four arms or separate streams. For this meaning of ראשׁים see Eze 16:25; Lam 2:19. Of the four rivers whose names are given to show the geographical situation of paradise, the last two are unquestionably Tigris and Euphrates. Hiddekel occurs in Dan 10:4 as the Hebrew name for Tigris; in the inscriptions of Darius it is called Tigrâ (or the arrow, according to Strabo, Pliny, and Curtius), from the Zendic tighra, pointed, sharp, from which probably the meaning stormy (rapidus Tigris, Hor. Carm. 4, 14, 46) was derived. It flows before (קדמת), in front of, Assyria, not to the east of Assyria; for the province of Assyria, which must be intended here, was on the eastern side of the Tigris: moreover, neither the meaning, "to the east of," nor the identity of קדמת and מקדם has been, or can be, established from Gen 4:16; Sa1 13:5, or Eze 39:11, which are the only other passages in which the word occurs, as Ewald himself acknowledges. P'rath, which was not more minutely described because it was so generally known, is the Euphrates; in old Persian, Ufrâtu, according to Delitzsch, or the good and fertile stream; Ufrâtu, according to Spiegler, or the well-progressing stream. According to the present condition of the soil, the sources of the Euphrates and Tigris are not so closely connected that they could be regarded as the commencements of a common stream which has ceased to exist. The main sources of the Tigris, it is true, are only 2000 paces from the Euphrates, but they are to the north of Diarbekr, in a range of mountains which is skirted on three sides by the upper course of the Euphrates, and separates them from this river. We must also look in the same country, the highlands of Armenia, for the other two rivers, if the description of paradise actually rests upon an ancient tradition, and is to be regarded as something more than a mythical invention of the fancy. The name Phishon sounds like the Phasis of the ancients, with which Reland supposed it to be identical; and Chavilah like Cholchis, the well-known gold country of the ancients. But the Φάσις ὁ Κόλχος (Herod. 4, 37, 45) takes its rise in the Caucasus, and not in Armenia. A more probable conjecture, therefore, points to the Cyrus of the ancients, which rises in Armenia, flows northwards to a point not far from the eastern border of Colchis, and then turns eastward in Iberia, from which it flows in a south-easterly direction to the Caspian Sea. The expression, "which compasseth the whole land of Chavilah," would apply very well to the course of this river from the eastern border of Colchis; for סבב does not necessarily signify to surround, but to pass through with different turns, or to skirt in a semi-circular form, and Chavilah may have been larger than modern Colchis. It is not a valid objection to this explanation, that in every other place Chavilah is a district of Southern Arabia. The identity of this Chavilah with the Chavilah of the Joktanites (Gen 10:29; Gen 25:18; Sa1 15:7) or of the Cushites (Gen 10:7; Ch1 1:9) is disproved not only by the article used here, which distinguishes it from the other, but also by the description of it as land where gold, bdolach, and the shohamstone are found; a description neither requisite nor suitable in the case of the Arabian Chavilah, since there productions are not to be met with there. This characteristic evidently shows that the Chavilah mentioned here was entirely distinct from the other, and a land altogether unknown to the Iraelites. What we are to understand by הבּדלח is uncertain. There is no certain ground for the meaning "pearls," given in Saad. and the later Rabbins, and adopted by Bochart and others. The rendering βδέλλα or βδέλλιον, bdellium, a vegetable gum, of which Cioscorus says, οἱ δὲ μάδελκον οἱ δὲ βολχὸν καλχὸν, and Pliny, "alii brochon appellant, alii malacham, alii maldacon," is favoured by the similarity in the name; but, on the other side, there is the fact that Pliny describes this gum as nigrum and hadrobolon, and Dioscorus as ὑποπέλιον (blackish), which does not agree with Num 11:7, where the appearance of the white grains of the manna is compared to that of bdolach. - The stone shoham, according to most of the early versions, is probably the beryl, which is most likely the stone intended by the lxx (ὁ λίθος ὁ πράσινος, the leek-green stone), as Pliny, when speaking of beryls, describes those as probatissimi, qui viriditatem puri maris imitantur; but according to others it is the onyx or sardonyx (vid., Ges. s.v.). (Note: The two productions furnish no proof that the Phishon is to be sought for in India. The assertion that the name bdolach is Indian, is quite unfounded, for it cannot be proved that madâlaka in Sanscrit is a vegetable gum; nor has this been proved of madâra, which is possibly related to it (cf. Lassen's indische Althk. 1, 290 note). Moreover, Pliny speaks of Bactriana as the land "in qua Bdellium est nominatissimum," although he adds, "nascitur et in Arabia Indiaque, et Media ac Babylone;" and Isidorus says of the Bdella which comes from India, "Sordida est et nigra et majori gleba," which, again, does not agree with Num 11:7. - The Shoham-stone also is not necessarily associated with India; for although Pliny says of the beryls, "India eos gignit, raro alibi repertos," he also observes, "in nostro orbe aliquando circa Pontum inveniri putantur.") The Gihon (from גּוּח to break forth) is the Araxes, which rises in the neighbourhood of the Euphrates, flows from west to east, joins the Cyrus, and falls with it into the Caspian Sea. The name corresponds to the Arabic Jaihun, a name given by the Arabians and Persians to several large rivers. The land of Cush cannot, of course, be the later Cush, or Ethiopia, but must be connected with the Asiatic Κοσσαία, which reached to the Caucasus, and to which the Jews (of Shirwan) still give this name. But even though these four streams do not now spring from one source, but on the contrary their sources are separated by mountain ranges, this fact does not prove that the narrative before us is a myth. Along with or since the disappearance of paradise, that part of the earth may have undergone such changes that the precise locality can no longer be determined with certainty. (Note: That the continents of our globe have undergone great changes since the creation of the human race, is a truth sustained by the facts of natural history and the earliest national traditions, and admitted by the most celebrated naturalists. (See the collection of proofs made by Keerl.) These changes must not be all attributed to the flood; many may have occurred before and many after, like the catastrophe in which the Dead Sea originated, without being recorded in history as this has been. Still less must we interpret Gen 11:1 (compared with Gen 10:25), as Fabri and Keerl have done, as indicating a complete revolution of the globe, or a geogonic process, by which the continents of the old world were divided, and assumed their present physignomy.)”
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.