Or HaChaim on Genesis 48:5/אור החיים על בראשית מ״ח:ה׳

1 ועתה שני בניך, "And now, your two sons, etc." As a result of this insight, ועתה, Jacob realised in retrospect that G'd had referred to two sons that were to be born to Joseph and that it was these that were destined to become גוי וקהל גוים as per that promise in 35,11. What G'd had meant was that Joseph's sons were to rank equally with Reuben and Shimon amongst Jacob's offspring.