Luke 5:8
But when Simon Peter saw this, he fell down at Jesus' knees, saying, "Go away from me, Lord, because I am a sinful man."
Luke 15:18-19
I will get up and go to my father and say to him, Father, I have sinned against [the God of] heaven and against you.
Luke 18:13
But the tax collector stood at a distance [i.e., inconspicuously] and would not even look up to heaven, but struck his chest [i.e., in remorse], saying, 'God, [please] have mercy on a sinner like me.'
1 Timothy 1:15
This saying is trustworthy and deserves to be fully accepted: Christ Jesus came into the world to save sinners, and I am the worst of them all.