Moses
Genesis 48:8BSB·traditional attribution

When Israel saw the sons of Joseph, he asked, “Who are these?”

John Calvin Reformed @genevareformer

8. And Israel beheld Joseph’s sons. I have no doubt that he had inquired concerning the youths, before he called them his heirs. But in the narration of Moses there is a hysteron proteron. And in the answer of Joseph we observe, what we have elsewhere alluded to, that the fruit of the womb is not born by chance, but is to be reckoned among the precious gifts of God.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. The blessing with which Jacob blessed the two sons of Joseph, which is the more remarkable because the apostle makes such particular mention of it (Heb 11:21), while he says nothing of the blessing which Jacob pronounced on the rest of his sons, though that also was done in faith. Observe here, 1. Jacob was blind for age, Gen 48:10.

Commenting on Genesis 48:8-22

John Gill Reformed Baptist @doctorgill

And Israel beheld Joseph's sons,.... Ephraim and Manasseh, of whom he had been speaking as if they were absent, and he might not know until now that they were present, for his eyes were dim that he could not see clearly, Gen 49:10; he saw two young men standing by Joseph, but knew not who they were, and therefore asked the following question: and said, who are these?