Origen
Catena Aurea · Johannesevangelium 13
Then cometh he to Simon Peter: and Peter said unto him, Lord, dost thou wash my feet? Jesus answered and said unto him, What I do thou knowest not now; but thou shalt know hereafter. Peter saith unto him, Thou shalt never wash my feet. Jesus answered him, If I wash thee not, thou hast no part with me. Simon Peter saith unto him, Lord, not my feet only, but also my hands and my head. Jesus saith to him, He that is washed needeth not save to wash his feet, but is clean every whit: and ye are clean, but not all. For he knew who should betray him; therefore said he, Ye are not all clean. Jesus answered and said unto him, What I do thou knowest not now; but thou shalt know hereafter.
(t. xxxii. 5.) This is an instance, that a man may say a thing with a good intention, and yet ignorantly to His hurt. Peter, ignorant of our Lord’s deep meaning, at first, as if in doubt, says mildly, Lord, dost Thou wash my feet? and then, Thou shalt never wash my feet; which was in reality to cut himself off from having a part with Jesus. Whence he not only blames our Lord for washing the disciples’ feet, but also his fellow-disciples for giving their feet to be washed. (c. 6.). As Peter then did not see his own good, our Lord did not allow His wish to be fulfilled: Jesus answered and said unto him, If I wash thee not, thou hast no part with Me.