Simon Peter’s reaction was understandable: "Master, we toiled all night and took nothing" (5:5). It isn’t as though you hadn’t already tried or had given up easily. But when Jesus does not reply, Simon Peter finds himself saying: "But at your word I will let down the nets."
So, partly because this man has spoken with such authority, partly because of what you have heard about him and partly because you want to see for yourself, you and your co-workers do exactly as he tells you. Almost immediately your nets are full of fish and, in fact, there are so many of them the nets begin to break under the great strain.
Soon you are calling to others for help and before you are finished, there are two boats filled with freshly-caught fish. Only a fisherman would know how amazed this made you feel.
Perhaps "terrified" would be more accurate, as you ponder this man’s fantastic power and conclude that here is a man truly sent from God. Perhaps he is the very Son of God himself. If such a man knew where to tell you to cast your fishing nets, surely he must also be able to see into your very heart.
"Depart from me," you exclaim, "for I am a sinful man, O Lord" (5:8).
His purpose, however, is not to frighten you with his judgment, but to use his power in bringing forth from your life something worthwhile: "Do not be afraid; henceforth you will be catching men" (5:10). This man sees not only your flawed life, he sees something else which even you have not seen: A God-given potential and value far beyond anything you might have dreamed.
There must have been numerous times later on in Simon Peter’s life when it seemed that people were not responding to his preaching, teaching and healing in the name of Christ. But perhaps in these times of discouragement, he remembered the day Christ called him to launch out into the deep "and let down your nets for a catch."
Remembering also the great catch of fish from a sea that had seemed so devoid of fish, Simon rallied his faith and continued to do what Christ had called him to do.