“When He had finished speaking, He said to Simon, ‘Push out into the deep water. Let down your nets for some fish.’ Simon said to Him, ‘Teacher, we have worked all night and we have caught nothing. But because You told me to, I will let the net down.’ When they had done this, they caught so many fish, their net started to break. They called to their friends working in the other boat to come and help them. They came and both boats were so full of fish they began to sink. When Simon Peter saw it, he got down at the feet of Jesus. He said, ‘Go away from me, Lord, because I am a sinful man.’ He and all those with him were surprised and wondered about the many fish. James and John, the sons of Zebedee, were surprised also. They were working together with Simon. Then Jesus said to Simon, ‘Do not be afraid. From now on you will fish for men.’ When they came to land with their boats, they left everything and followed Jesus.”
–Luke 5:4-11
This is the first time that Peter talks to Jesus and we see a very interesting dialogue.
Because The Word uses neither tone nor inflection, we do not know if Peter was being sarcastic in his response or not.
If he was, he just insulted a prophet of God after His sermon.
If he was not, he showed the ultimate act of humility.
Imagine you just worked a double shift at work, but you are asked to do the most physically demanding task one more time.
That is the situation that Peter was in.
Granted, it is not a perfect comparison, but Peter would have been exhausted. If he was being sarcastic, that is a lot of work to go through to humor someone.
Peter, showed pure faith in who he believed to be a Prophet based only on His Word.
Peter may get some flak for denying Jesus thrice, but this was amazing faith.