2 Samuel 12:13

12:13 Then David exclaimed to Nathan, “I have sinned against the Lord!” Nathan replied to David, “Yes, and the Lord has forgiven your sin. You are not going to die.

2 Samuel 24:10

24:10 David felt guilty after he had numbered the army. David said to the Lord, “I have sinned greatly by doing this! Now, O Lord, please remove the guilt of your servant, for I have acted very foolishly.”

Job 33:27

33:27 That person sings to others, saying:

‘I have sinned and falsified what is right,

but I was not punished according to what I deserved.

Psalms 51:4

51:4 Against you – you above all – I have sinned;

I have done what is evil in your sight.

So you are just when you confront me;

you are right when you condemn me.

Luke 15:18-21

15:18 I will get up and go to my father and say to him, “Father, I have sinned against heaven and against you. 15:19 I am no longer worthy to be called your son; treat me like one of your hired workers.”’ 15:20 So he got up and went to his father. But while he was still a long way from home his father saw him, and his heart went out to him; he ran and hugged his son and kissed him. 15:21 Then his son said to him, ‘Father, I have sinned against heaven and against you; I am no longer worthy to be called your son.’