John 13:6

Then cometh he Better, He comeththerefore, i.e. in consequence of having begun to wash the feet of each in turn. The natural impression is that S. Peter's turn at any rate did not come first. But if it did, this is not much in favour of the primacy of S. Peter, which can be proved from other passages, still less of a supremacy, which cannot be proved at all.

dost thou wash my feet? There is a strong emphasis on -Thou." Comp. -Comest Thouto me?" (Matthew 3:14.)