And Simon answering said unto him, Master, we have toiled all the night, and have taken nothing: nevertheless at thy word I will let down the net. -- Luke 5:5 (KJV)
Simon was washing his nets when Jesus stepped into his boat. Luke opens with that detail because of what it means on a working shore: washing nets is the chore that closes a shift. The boats were in. The night was spent — and night was the right time to fish that lake, the hours a man who did it for a living would choose. Simon was cleaning up after a failure when a teacher borrowed his boat for a pulpit.
The sermon ends, and Jesus turns to a subject nobody asked Him about. Launch out into the deep, and let down your nets for a draught.
Everything Simon knew said no. The hour was wrong. The water was proven — he had spent the whole night proving it. Even the clean nets argued against it, since obeying meant undoing the last chore he had finished.
His answer gives the objection its full weight before it moves. Master, we have toiled all the night, and have taken nothing. Jesus had not asked how the night went; Simon volunteers it — the entire case against the instruction, stated by the one man on that shore qualified to make it. Then, without withdrawing a word of the case: nevertheless at thy word I will let down the net.
Nothing in his answer concedes the point about the fish. Simon is not convinced; he is commanded, and the difference is the hinge of the story. The boat moves on the strength of the word alone — and the water he had certified empty comes up so full that the net begins to break and two ships sit low under what was supposedly not there.
The catch did not make the word true. The word was true when it was spoken; rowing out is where Simon found out. Some instruction of God is probably sitting in your week in the same posture — familiar ground, wrong hour, already tried once. Holding out until it makes sense feels reasonable there. The net went down before the agreement did, and that is the order Luke wrote down.