This is not the first time Jesus gave his disciples directions to cast their nets after a fruitless night of fishing. Luke 5: 4-8 says,
When He had finished speaking, He said to Simon, “Put out into the deep water and let down your nets for a catch.”Simon answered and said, “Master, we worked hard all night and caught nothing, but I will do as You say and let down the nets.” When they had done this, they enclosed a great quantity of fish, and their nets began to break; so they signaled to their partners in the other boat for them to come and help them. And they came and filled both of the boats, so that they began to sink. But when Simon Peter saw that, he fell down at Jesus’ feet, saying, “Go away from me Lord, for I am a sinful man!”
Before they became followers, their nets were breaking and their boats were sinking because of the weight of fish they caught. Now they are followers and their nets are not breaking and they need no help from other fishermen to bring the net in. God provides miraculously for those who follow Him! We, as followers of a risen Lord, need not ever forget that truth. We can work for Him, in His strength and not our own, and He will supply and sustain us.