Augustine of Hippo
Catena Aurea · Johannesevangelium 1
He first findeth his own brother Simon, and saith unto him, We have found the Messias, which is, being interpreted, the Christ. And he brought him to Jesus. And when Jesus beheld him, he said, Thou art Simon the son of Jona: thou shalt be called Cephas, which is by interpretation, A stone.
(de Con. Evang. l. ii. c. 17) The account here of the two disciples on the Jordan, who follow Christ (before he had gone into Galilee) in obedience to John’s testimony; viz. of Andrew bringing his brother Simon to Jesus, who gave him, on this occasion, the name of Peter; disagrees considerably with the account of the other Evangelists, viz. that our Lord found these two, Simon and Andrew, fishing in Galilee, and then bid them follow Him: unless we understand that they did not regularly join our Lord when they saw Him on the Jordan; but only discovered who He was, and full of wonder, then returned to their occupations. Nor must we think that Peter first received his name on the occasion mentioned in Matthew,when our Lord says, Thou art Peter, and upon this rock will I build My Church; (Mat. 16:18) but rather when our Lord says, Thou shall be called Cephas, which is by interpretation, A stone.