Genesis 48:17

17 And Joseph having seen that his father put his right hand on the head of Ephraim—it seemed grievous to him; and Joseph took hold of the hand of his father, to remove it from the head of Ephraim to the head of Manasse.

Genesis 48:17 Meaning and Commentary

Genesis 48:17

And when Joseph saw that his father laid his right hand upon
the head of Ephraim, it displeased him
To see the younger preferred to the elder; parents, generally speaking, having the greatest regard to the firstborn with respect to honour and estate, and to them, in those times, the patriarchal blessing particularly was thought to belong; but it did not always go to them, but to the younger, as in Jacob's own case: and he held up his father's hand, to remove it from Ephraim's head
unto Manasseh's head;
he took him by the right hand, and lifted it up from the head of Ephraim, and held it in order that he might put it by his direction on the head of Manasseh.

Genesis 48:17 In-Context

15 And he blessed them and said, The God in whose sight my fathers were well pleasing, Abraam and Isaac, the God who continues to feed me from my youth until this day;
16 the angel who delivers me from all evils, bless these boys, and my name shall be called upon them, and the name of my fathers, Abraam and Isaac; and let them be increased to a great multitude on the earth.
17 And Joseph having seen that his father put his right hand on the head of Ephraim—it seemed grievous to him; and Joseph took hold of the hand of his father, to remove it from the head of Ephraim to the head of Manasse.
18 And Joseph said to his father, Not so, father; for this is the first-born; lay thy right-hand upon his head.
19 And he would not, but said, I know it, son, I know it; he also shall be a people, and he shall be exalted, but his younger brother shall be greater than he, and his seed shall become a multitude of nations.

The Brenton translation of the Septuagint is in the public domain.