Simon and the other disciples went out one night to fish and caught nothing. So in the morning when someone called out to them on the shore, encouraging them to cast their net on the right side, it took some faith to obey that request. They didn’t initially recognise that it was Jesus, but when the nets were full and almost breaking from the haul, they knew it was Him. It was the miracle of supply which made them recognise Jesus, because he had taught them how faith could meet their needs.
Peter and some of the other disciples were fishermen before they became disciples. It was Peter and his brother Andrew who Jesus met by the sea of Galilee. “And he saith unto them, Come ye after me, and I will make you fishers of men.” (Matthew 4:19)
This call was to leave their trade as Fishermen to spread the gospel of Jesus Christ. Understandably, Peter and the other disciples were discouraged after Jesus’s crucifixion so he turned to something familiar. No wonder they caught nothing all night because, were they doing what God had called them to do? Nevertheless, Jesus was reminding Peter that he was able to supply more than enough fish to meet his needs.
Once the disciples were fed and nourished from the fish and bread which Jesus had prepared, Jesus reminds Peter of the mission that was assigned to him. “He said to him a second time, “Simon, son of John, do you love me?” He said to him, “Yes, Lord; you know that I love you.” He said to him, “Tend my sheep.”” (John 21:16) God is able to make all grace abound to you and supply what you need to accomplish your God given assignment.