Acts 26:20 I preached first to those in Damascus, then in Jerusalem and throughout all Judea, and also to the Gentiles, that all must repent of their sins and turn to God--and prove they have changed by the good things they do.
Matthew 3:2 And saying, Repent: for the kingdom of heaven is at hand. Repent ye - Repentance implies sorrow for past offences 2 Corinthians 7:10; a deep sense of the evil of sin as committed against God Psalm 51:4; and a full purpose to turn from transgression and to lead a holy life.