Genesis 48:17-20

When Joseph saw his father place his right hand on Ephraim’s head, he was not happy, so he tried to move his father’s hand from Ephraim to Manasseh’s head. “Not that way,” Joseph said to his father, “Here, father, put your right hand on the firstborn’s head.” But his father refused and said, “I know, my son, I know. Manasseh’s descendants will also multiply and become a great people. His younger brother will become even greater than he, and his tribe will one day give rise to many nations.” So Jacob blessed them that day, saying, “Israel will use your names when they pronounce blessings! They will say, ‘May God make you like Ephraim and like Manasseh!’ ”