Barnes New Testament Notes

Verse 6. Dost thou wash my feet? Every word here is emphatic. Dost thou -- the Son of God, the Messiah -- perform the humble office of a servant -- toward me, a sinner? This was an expression of Peter's humility, of his reverence for Jesus, and also a refusal to allow him to do it. It is possible, though not certain from the text, that he came to Simon Peter first.

{1} "Peter", or "he" {g} "dost thou wash my feet" Mt 3:14