Genesis 48:17-20

17When Joseph saw that his father had placed his right hand on Ephraim’s head, he was displeased and took his father’s hand to move it from Ephraim’s head to Manasseh’s. 18“Not so, my father!” Joseph said. “This one is the firstborn; put your right hand on his head.”

19But his father refused. “I know, my son, I know!” he said. “He too shall become a people, and he too shall be great; nevertheless, his younger brother shall be greater than he, and his offspring shall become a multitude of nations.”

20So that day Jacob blessed them and said:

So he put Ephraim before Manasseh.