The interpretation timeline

Gen 49:26

How this passage has been read — the sources, oldest to newest.

From the early Church Fathers to now.

2 Patristic · 1 Jewish

Gen 49:26 · Douay-Rheims
“The blessings of thy father are strengthened with the blessings of his fathers: until the desire of the everlasting hills should come; may they be upon the head of Joseph, and upon the crown of the Nazarite among his brethren.”
Patristic before A.D. 750
397
A.D.
Ambrose of Milan Patristic
A.D. 339–397
“And so he surpassed all mountains, and the desires of the eternal hills. For he excelled not only all those sublime men of merit, the patriarchs, prophets, and apostles, but even the sun, the moon, and the archangels, shining like the light of heaven, as he himself says: A disciple is not above his master, nor a servant above his lord. For who among them was there to whom all things were subject, to whom he gave what they were? In which all his saints are blessed, because he is the head of all heads. For the head of a woman is the man, and the head of a man is Christ. And he is exalted above the peaks of the mountains, for he is the highest pinnacle of all: but the highest pinnacle belongs to the righteous. He calls them brothers, acquired through grace, and partakers in a certain regeneration. Therefore, we understand Joseph to be more of a brother to them, of whom it is said in the psalm: I will declare your name to my brothers, I will sing your praises in the midst of the Church.”
Source
411
A.D.
Tyrannius Rufinus Patristic
c. A.D. 345–411
“Now then, with regard to the third sense, that man, being renewed and increased through the spiritual steps, ascends to the greatness of Joseph, who, thanks to the progress of his faith and the gifts of the Holy Spirit, rose to such an extent that he became the victim of envy. Therefore by what garlands braided by our words will that man be crowned for whom, after fighting, and completing his race and preserving his faith, God, the just Judge, keeps in store the crown of justice? About him the father says, "Joseph is a son increased." And who is so increased as that one who, after his errors and fall, is renewed and returned through the different stages of virtue to such a degree that he reaches the greatest victory? But since he rises little by little, for this reason he is said to be increased in the single stages. In fact, first he began to be increased in Judah through confession. Then he is increased again in Zebulun because he dispelled the obscurity of darkness. Then he is increased again in Issachar because the reward for his works was increased. He is increased again in Dan when he began to keep a correct capacity of judgment in the context of his free will. He is increased again in Gad because he resisted temptation. He is finally increased in Asher when he reached beatitude. In an appropriate manner Joseph also is called "increased son," because he obtains already the goods to come. But he is also called "envied son," that is, the one who is set as a model to be imitated by the righteous and will receive the zeal of envy and hatred from the wicked. Also the apostle speaks about the good and the bad zeal and with regard to the evil zeal of the Jews says, "They make much of you, but for no good purpose." And with regard to the good zeal, he says about himself, "I feel a divine jealousy for you." But he is also called "the youngest son." Why should not that one who put off the old man with his actions, resurrected in Christ and walking in the renewal of life, be called the youngest son? And this new man will be called "son" three times. The first was his birth according to the flesh, the second the birth through conversion and baptism. The third is the birth also defined as regeneration, which is the resurrection of the dead.”
Source
694 years pass — nothing from this stretch is hosted yet
Scholastic c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
“'ברכת אביך גברו וגו THE BLESSING OF THY FATHER HAVE PREVAILED etc. — The blessings which the Holy One, blessed be He, bestowed upon me are mighty beyond the blessings wherewith He blessed my progenitors עד תאות גבעות עולם EVEN TO THE BOUNDARIES OF THE EVERLASTING HILLS — Because my blessings have prevailed, extending to the very ends of the bounds of the everlasting hills, for He gave me a blessing that bursts all bounds, one that has no limits, that reaches even unto the four corners of the world, as it is stated, (Genesis 28:14) “[God said to Jacob] and thou shalt spread abroad to the West and to the East [and to the North and to the South]”, an unqualified promise that was made neither to Abraham nor to Isaac. For to Abraham He said, (Genesis 13:14) “Lift up thine eyes and look northwards etc. … for all the land which thou seest to thee will I give it”, and He showed him only the Land of Israel. To Isaac He said, (Genesis 26:3) “for unto thee and unto thy seed will I give all these lands, and I will establish the oath [which I swore unto Abraham thy father]”. It is to this that Isaiah alludes when he said, (Isaiah 58:14) “And I will feed thee with the heritage of Jacob thy father” (Shabbat 118b), and he did not say, “with the heritage promised to Abraham”. הורי is from a root meaning to conceive. The singular denotes “my father”, the one who made my mother conceive me. We find a similar use of the verb in (Job 3:3) “A man is causing a woman to conceive (הוֹרָה).” עד תאות means UNTO THE ENDS — The word is connected with the verbs in (Numbers 36:10) “And ye shall mark out the ends (והתאויתם) for the east border”, and (Numbers 5:8) “you shall mark out the ends (תתאו) unto the entrance of Hamath”. תאות means in old French émoulis. Thus (i.e. with these words) did Menachem ben Seruk classify it (תאות). Onkelos translates (תאות (גבעת עולם in the sense of desire (תאוה) and longing and takes גבעת as a figurative expression for “the great ones”, like (1 Samuel 2:8) “the pillars of the earth”, meaning the righteous of the earth — viz., he renders it by “the blessings for which the great ones of the earth longed”, referring to the blessings which his mother so much desired that she forced him to take steps to obtain them תהיין THEY — all — SHALL BE ON THE HEAD OF JOSEPH. נזיר אחיו means what the Targum has: פרישא דאחוהי. i.e. the one who was separated from his brothers. The word נזיר is of a root signifying separation, as in (Leviticus 22:2) “that they separate themselves (וינזרו) from the holy things of the children of Israel”; (Isaiah 1:4) “they have separated themselves from God (נזרו) turning backward”.”
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.