Genesis 48:5

48:5 “Now, as for your two sons, who were born to you in the land of Egypt before I came to you in Egypt, they will be mine. Ephraim and Manasseh will be mine just as Reuben and Simeon are.

Genesis 48:13-14

48:13 Joseph positioned them; he put Ephraim on his right hand across from Israel’s left hand, and Manasseh on his left hand across from Israel’s right hand. Then Joseph brought them closer to his father. 48:14 Israel stretched out his right hand and placed it on Ephraim’s head, although he was the younger. Crossing his hands, he put his left hand on Manasseh’s head, for Manasseh was the firstborn.

Genesis 50:23

50:23 Joseph saw the descendants of Ephraim to the third generation. He also saw the children of Makir the son of Manasseh; they were given special inheritance rights by Joseph.