Luke 13:3-5
No, I tell you; but unless you repent [i.e., change your hearts and lives], you [too] will all be destroyed just as they were.
Acts 26:20
but, [instead] declared to the people of Damascus first, [then] to the people of Jerusalem, and [finally to those] throughout all of the district of Judea, as well as to the Gentiles [everywhere] that they should repent [i.e., change their hearts and lives] and turn to God, doing deeds which demonstrate their repentance.
James 4:8-10
Come close to God and He will come close to you. Wash your hands, you sinful people [i.e., this is an exhortation to repent of moral and spiritual corruption], and purify your hearts, you double-minded people.