Genesis 48:17-20  New Revised Standard Version Catholic Edition

¹⁷ When Joseph saw that his father laid his right hand on the head of Ephraim, it displeased him; so he took his father’s hand, to remove it from Ephraim’s head to Manasseh’s head. ¹⁸ Joseph said to his father, “Not so, my father! Since this one is the firstborn, put your right hand on his head.” ¹⁹ But his father refused, and said, “I know, my son, I know; he also shall become a people, and he also shall be great. Nevertheless his younger brother shall be greater than he, and his offspring shall become a multitude of nations.” ²⁰ So he blessed them that day, saying,

So he put Ephraim ahead of Manasseh.