The interpretation timeline
Genesis 37:25 Douay-Rheims

And sitting down to eat bread, they saw some Ismaelites on their way coming from Galaad, with their camels, carrying spices, and balm, and myrrh to Egypt.

A.D. 99 – 1875 8 witnesses

Patristic

before A.D. 750
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

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
ארחת means what the Targum says — A CARAVAN; this is called ארחת with reference to the travelers on the road (ארח) who compose it. וגמליהם נשאים AND THEIR CAMELS WERE BEARING etc. — Why does Scripture specially announce what they were laden with? It is to tell you how great is the reward of the righteous: it is not usual for Arabs to carry anything but naphta and itran (tar) which are evil-smelling, but for this one (Joseph, the righteous) it was specially arranged that they should be carrying fragrant spices so that he should not suffer from a bad odour (Genesis Rabbah 84:17). נכאת SPICERY — Every collection of many kinds of spices is called נכאת. So, too, (2 Kings 20:13) “and he showed them all the house of his נכתה which means the house where his spices were mixed. Onkelos translates it as meaning wax (perhaps an aromatic gum). צרי AND BALM — a resin that exudes from the wood of the balsam-tree: it is the נטף that is enumerated among the ingredients of the incense used in the Tabernacle (Exodus 30:34; cf. Keritot 6a). ולט AND LADANUM — This is called Lotos in the language of the Mishna. Our Rabbis have in treatise Niddah 8a explained that it is a vegetable root; it bears the name aristolochia (birthwort).”
Source
1270
A.D.
Ramban Jewish
1194–1270
“AND, BEHOLD, A CARAVAN OF ISHMAELITES CAME FROM GILEAD. When they looked up and saw at a distance men approaching from the direction of Gilead,), and finally as Midianites (Verse 36). they recognized them as a camel caravan of Ishmaelites on their way to Egypt, for it was from Gilead that balms and spices came, and it was their custom to bring it to Egypt. This was why Judah said to them, “Behold these men come from afar and are travelling to a distant country. Let us sell him to them so that the matter should not become known.” And when they came near they discovered them to be merchants of spices and balms — Midianites, merchantmen — who had hired the camels from the Ishmaelites. They sold Joseph to the Midianites who purchased him for profit, but the company of Ishmaelites, the lessors of the camels, would not purchase him for their own investment purposes. The verse which states, And they sold Joseph to the Ishmaelites, means that it was to them that the Midianites who bought him turned him over, for they were the ones who transported the merchandise to Egypt. This is also the meaning of the verse, From the hand of the Ishmaelites, that had brought him down thither, for he was in their care. But the Midianites were his masters, and they made trade with him. This is the sense of the verse, And the Midianites sold him to Egypt. All stories in Scripture are written in this manner: sometimes it is told in the name of the authority who commands that it be done, and other times in the name of the agent who performs the act. Such a case is the verse, All the great work of the Eternal which He did, while elsewhere it states, Which Moses did in the sight of all Israel., 34:12. Similarly it says, Thus all the work that king Solomon did in the house of the Eternal was finished, but it was Hiram that did it, as it is written, And he came to king Solomon, and wrought all his work., Verse 14. In the case of Joseph himself, the verse says, And whatsoever they did there, he was the doer of it, thus ascribing the action both to he who commanded it and the one who did it. Rabbi Abraham ibn Ezra says that the Midianites are called Ishmaelites, just as Scripture, in speaking of Midianite kings, says, Because they were Ishmaelites. But the matter is not as Ibn Ezra considered it to be since the verse which states, For they had golden ear-rings, because they were Ishmaelites, alludes to “the children of the east” whose war it was, as it is written, Now all the Midianites and Amalekites and the children of the east assembled themselves together,, 6:33. and “the children of the east” are Ishmaelites, for concerning all the sons of the concubines that Abraham had, it is said, And he sent them away from Isaac his son, while he yet lived, eastward, unto the east country. It is also possible that the kings were Ishmaelites who ruled over Midian. Otherwise, why should “kings of Midian” be called by the name of Ishmael their brother? In line with the literal sense of Scripture the correct interpretation concerning the sale of Joseph is as we have said. But our Rabbis have said that he was sold several times [and have thereby explained why his captors are alternately referred to as Midianites and Ishmaelites].”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“And Judah said unto his brethren,.... In sight of the Ishmaelites, a thought came into his mind to get Joseph sold to them: what profit is it if we slay our brother, and conceal his blood? it could be no advantage to them even if they could have concealed his blood from men; and if it was discovered, as it would, in all likelihood, by come means or another, then they must be answerable for it; and if not, God would take vengeance on them, from whom they could never conceal it; and therefore it would be most profitable and advantageous to them to sell him, and not destroy him, or take away his life; and to suffer him to lie in the pit and die was the same thing.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“They sat down to eat bread - Every act is perfectly in character, and describes forcibly the brutish and diabolic nature of their ruthless souls. A company of Ishmaelites - We may naturally suppose that this was a caravan, composed of different tribes that, for their greater safety, were traveling together, and of which Ishmaelites and Midianites made the chief. In the Chaldee they are called Arabians, which, from ערב arab, to mingle, was in all probability used by the Targumist as the word Arabians is used among us, which comprehends a vast number of clans, or tribes of people. The Jerusalem Targum calls them סרקין Sarkin, what we term Saracens. In the Persian, the clause stands thus: karavanee iskmaaleem araban aya. "A caravan of Ishmaelite Arabs came." This seems to give the true sense.”
Source
1849
A.D.
1774–1849
“To eat bread. How could they do this while their innocent brother was praying and lamenting! (chap. xlii. 21.) (Haydock) — Some: a caravan of merchants. (Du Hamel) — Balm, or rosin; “that of Syria resembles attic honey.” (Pliny, Natural History) — Myrrh, (stacten); Hebrew, Lot: “drops of myrrh or laudanum, or of the Lotus tree.” (Calmet)”
Source
1871
A.D.
1871
“they sat down to eat bread--What a view does this exhibit of those hardened profligates! Their common share in this conspiracy is not the only dismal feature in the story. The rapidity, the almost instantaneous manner in which the proposal was followed by their joint resolution, and the cool indifference, or rather the fiendish satisfaction, with which they sat down to regale themselves, is astonishing. It is impossible that mere envy at his dreams, his gaudy dress, or the doting partiality of their common father, could have goaded them on to such a pitch of frenzied resentment or confirmed them in such consummate wickedness. Their hatred to Joseph must have had a far deeper seat. It must have been produced by dislike to his piety and other excellencies, which made his character and conduct a constant censure upon theirs, and on account of which they found that they could never be at ease till they had rid themselves of his hated presence. This was the true solution of the mystery, just as it was in the case of Cain (Jo1 3:12). they lifted up their eyes, . . . and, behold, a company of Ishmaelites--They are called Midianites (Gen 37:28), and Medanites, in Hebrew (Gen 37:36), being a travelling caravan composed of a mixed association of Arabians. Those tribes of Northern Arabia had already addicted themselves to commerce, and long did they enjoy a monopoly, the carrying trade being entirely in their hands. Their approach could easily be seen; for, as their road, after crossing the ford from the trans-jordanic district, led along the south side of the mountains of Gilboa, a party seated on the plain of Dothan could trace them and their string of camels in the distance as they proceeded through the broad and gently sloping valley that intervenes. Trading in the produce of Arabia and India, they were in the regular course of traffic on their way to Egypt: and the chief articles of commerce in which this clan dealt were spicery from India, that is, a species of resinous gum, called storax, balm--"balm of Gilead," the juice of the balsam tree, a native of Arabia-Felix, and myrrh--an Arabic gum of a strong, fragrant smell. For these articles there must have been an enormous demand in Egypt as they were constantly used in the process of embalming.”
Source
1875
A.D.
Keil & Delitzsch Lutheran
1861–1875
“Reuben had saved Joseph's life indeed by his proposal; but his intention to send him back to his father was frustrated. For as soon as the brethren sat down to eat, after the deed was performed, they saw a company of Ishmaelites from Gilead coming along the road which leads from Beisan past Jenin (Rob. Pal. iii. 155) and through the plain of Dothan to the great caravan road that runs from Damascus by Lejun (Legio, Megiddo), Ramleh, and Gaza to Egypt (Rob. iii. 27, 178). The caravan drew near, laden with spices: viz., נכאת, gum-tragacanth; צרי, balsam, for which Gilead was celebrated (Gen 43:11; Jer 8:22; Jer 46:11); and לט, ladanum, the fragrant resin of the cistus-rose. Judah seized the opportunity to propose to his brethren to sell Joseph to the Ishmaelites. "What profit have we," he said, "that we slay our brother and conceal his blood? Come, let us sell him to the Ishmaelites; and our hand, let it not lay hold of him (sc., to slay him), for he is our brother, our flesh." Reuben wished to deliver Joseph entirely from his brothers' malice. Judah also wished to save his life, though not from brotherly love so much as from the feeling of horror, which was not quite extinct within him, at incurring the guilt of fratricide; but he would still like to get rid of him, that his dreams might not come true. Judah, like his brethren, was probably afraid that their father might confer upon Joseph the rights of the first-born, and so make him lord over them. His proposal was a welcome one. When the Arabs passed by, the brethren fetched Joseph out of the pit and sold him to the Ishmaelites, who took him into Egypt. The different names given to the traders - viz., Ishmaelites (Gen 37:25, Gen 37:27, and Gen 37:28), Midianites (Gen 37:28), and Medanites (Gen 37:36) - do not show that the account has been drawn from different legends, but that these tribes were often confounded, from the fact that they resembled one another so closely, not only in their common descent from Abraham (Gen 16:15 and Gen 25:2), but also in the similarity of their mode of life and their constant change of abode, that strangers could hardly distinguish them, especially when they appeared not as tribes but as Arabian merchants, such as they are here described as being: "Midianitish men, merchants." That descendants of Abraham should already be met with in this capacity is by no means strange, if we consider that 150 years had passed by since Ishmael's dismissal from his father's house, - a period amply sufficient for his descendants to have grown through marriage into a respectable tribe. The price, "twenty (sc., shekels) of silver," was the price which Moses afterwards fixed as the value of a boy between 5 and 20 (Lev 27:5), the average price of a slave being 30 shekels (Exo 21:32). But the Ishmaelites naturally wanted to make money by the transaction.”
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.