Luke 12:10

12:10 And everyone who speaks a word against the Son of Man will be forgiven, but the person who blasphemes against the Holy Spirit will not be forgiven.

Luke 15:18

15:18 I will get up and go to my father and say to him, “Father, I have sinned against heaven and against you.

Luke 15:21

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.’