Gen 48:5

48:5 Ephraim and Manasseh. The younger (Ephraim) is again preferred before the older (vv. 17–20; 25:23 and note).

Reuben and Simeon. The first two sons of Leah are mentioned because they are bypassed to give the double portion to Joseph, Rachel’s firstborn. Reuben lost his rights as firstborn because he defiled his father’s marriage bed (35:22; 43:3 note; 49:3, 4).