Genesis 48:18

18 And Joseph said to his father, Not so, my father, for this is the firstborn: put thy right hand on his head.

Genesis 48:18 Meaning and Commentary

Genesis 48:18

And Joseph said unto his father, not so, my father
It is not right, it should not so be, that the right hand should be put on the youngest, and the left hand on the eldest; for this [is] the firstborn;
directing him to Manasseh, and seeking to guide his hand towards him: put thy right hand upon his head;
Joseph was for proceeding according to the order of birthright, but Jacob was directed by a spirit of prophecy, as follows.

Genesis 48:18 In-Context

16 the Angel that redeemed me from all evil, bless the lads; and let my name be named upon them, and the name of my fathers Abraham and Isaac; and let them grow into a multitude in the midst of the land!

17 When Joseph saw that his father laid his right hand on the head of Ephraim, it was evil in his eyes; and he took hold of his father's hand to remove it from Ephraim's head to Manasseh's head.

18 And Joseph said to his father, Not so, my father, for this is the firstborn: put thy right hand on his head.

19 But his father refused and said, I know, my son, I know: he also will become a people, and he also will be great; but truly his younger brother will be greater than he; and his seed will become the fulness of nations.

20 And he blessed them that day, saying, In thee will Israel bless, saying, God make thee as Ephraim and Manasseh! And he set Ephraim before Manasseh.