Genesis 48:13-20

He put Ephraim on his right side and Manasseh on his left. (So Ephraim was near Israel’s left hand, and Manasseh was near Israel’s right hand.) Joseph brought the boys close to Israel. But Israel crossed his arms and put his right hand on the head of Ephraim, who was younger. He put his left hand on the head of Manasseh, the firstborn son. And Israel blessed Joseph and said, “My ancestors Abraham and Isaac served our God, and like a shepherd God has led me all my life. He was the Angel who saved me from all my troubles. Now I pray that he will bless these boys. May my name be known through these boys, and may the names of my ancestors Abraham and Isaac be known through them. May they have many descendants on the earth.” When Joseph saw that his father put his right hand on Ephraim’s head, he didn’t like it. So he took hold of his father’s hand, wanting to move it from Ephraim’s head to Manasseh’s head. Joseph said to his father, “You are doing it wrong, Father. Manasseh is the firstborn son. Put your right hand on his head.” But his father refused and said, “I know, my son, I know. Manasseh will be great and have many descendants. But his younger brother will be greater, and his descendants will be enough to make a nation.” So Israel blessed them that day and said, “When a blessing is given in Israel, they will say: ‘May God make you like Ephraim and Manasseh.’ ” In this way he made Ephraim greater than Manasseh.