John 1:40-42

One of the two who heard what John said and [as a result] followed Jesus was Andrew, Simon Peter’s brother. He first looked for and found his own brother Simon and told him, “We have found the Messiah” (which translated means the Christ). Andrew brought Simon to Jesus. Jesus looked at him and said, “You are Simon the son of John. You shall be called Cephas (which is translated Peter).”