Saw his brother, i.e. more narrowly observed him, having now more leisure than he seems to have had when he saw him first, Genesis 43:16. My son; so he calls him, not from special affection, which he intended not yet to discover; but because this compellation is commonly used when a man speaks to another who is his inferior in age or dignity.
Related Commentaries of Genesis 43:29
Genesis 43:29
29 And he lifted up his eyes, and saw his brother Benjamin, his mother's son, and said, Is this your younger brother, of whom ye spake unto me? And he said, God be gracious unto thee, my son.