Genesis 48:12-14

12So Joseph brought them from beside his knees, and he bowed down with his face to the earth.

13And Joseph took them both, Ephraim with his right hand toward Israel’s left hand, and Manasseh with his left hand toward Israel’s right hand, and brought them near him.

14Then Israel stretched out his right hand and laid it on Ephraim’s head, who was the younger, and his left hand on Manasseh’s head, guiding his hands knowingly, for Manasseh was the firstborn.