Luke 5: 5
5 But Simon answered and said to Him, "Master, we have toiled all night and caught nothing; nevertheless at Your word I will let down the net."
Simon Peter had been a fisherman his whole life and now Jesus is asking Simon to let down his nets for a catch after they had toiled all night and caught nothing. Simon probably thought he knew better than the Lord, but at His request he would do as Jesus asked.
I’m sure at times we all feel we know better than the Lord when He asks us to take a step of faith. This is when our faith is really tested. Are we willing to say, “Yes, Lord” not my will, but yours.