Luke 5:1-8
On one occasion, while the crowd was pressing in on him to hear the word of God, he was standing by the lake of Gennesaret,and he saw two boats by the lake, but the fishermen had gone out of them and were washing their nets.Getting into one of the boats, which was Simon’s, he asked him to put out a little from the land. And he sat down and taught the people from the boat.And when he had finished speaking, he said to Simon, “Put out into the deep and let down your nets for a catch.”And Simon answered, “Master, we toiled all night and took nothing! But at your word I will let down the nets.”And when they had done this, they enclosed a large number of fish, and their nets were breaking.They signaled to their partners in the other boat to come and help them. And they came and filled both the boats, so that they began to sink.But when Simon Peter saw it, he fell down at Jesus’ knees, saying, “Depart from me, for I am a sinful man, O Lord.”

It would seem that Our Lord finds our desires not too strong, but too weak. We are half-hearted creatures, fooling about with drink and sex and ambition when infinite joy is offered us; like an ignorant child who wants to go on making mud pies in a slum because he cannot imagine what is meant by the offer of a holiday at the sea. We are far too easily pleased.

– C.S. Lewis, The Weight of Glory