Augustine of Hippo
Catena Aurea · Johannesevangelium 13
Simon Peter said unto him, Lord, whither goest thou? Jesus answered him, Whither I go, thou canst not follow me now; but thou shalt follow me afterwards. Peter said unto him, Lord, why cannot I follow thee now? I will lay down my life for thy sake. Jesus answered him, Wilt thou lay down thy life for my sake? Verily, verily, I say unto thee, The cock shall not crow, till thou hast denied me thrice.
(Tr. lxvi. 1) The disciple asks this, as if he were ready to follow. But our Lord saw his heart; Jesus answered him, Whither I go, thou canst not follow Me now; He checks his forwardness, but does not destroy his hope; nay, confirms it; But thou shalt follow Me afterwards. Why hastenest thou, Peter? The Rock has not yet established thee with His spirit. Be not lifted up with presumptions, thou canst not now; be not cast down with despair, thou shalt follow Me afterwards.