Passing alongside the Sea of Galilee, he saw Simon and Andrew the brother of Simon casting a net into the sea, for they were fishermen. And Jesus said to them, “Follow me, and I will make you become fishers of men” - Mark 1.16-17 (ESV)
Jesus beckoned a couple of ordinary fishermen to follow Him and to learn how to catch people for the Kingdom. Among those men was Peter, who would become the most well-known among the disciples. Despite his many mistakes and oft-ailing faith during his time with Jesus, this man would go on to spread the gospel message widely.