Genesis 48:14

14But Israel reached out his right hand and laid it on the head of Ephraim, who was the younger, and his left hand on Manasseh’s head, 48:14 God acts independently of priority based on birth order when He chooses men. He too “crossed His hands” in the case of Seth whom He chose over Cain; of Shem over Japheth; of Isaac over Ishmael; of Jacob over Esau; of Judah and Joseph over Reuben; of Moses over Aaron; and of David over all his brothers.crossing his hands [intentionally], even though Manasseh was the firstborn.