Repentance in Christianity
Repentance (a term related to Greek: μετάνοια, romanized: metanoia), in Christianity, refers to being sorrowful for having committed sin and then turning away from sin toward a life of holiness. In certain Christian traditions, such as Catholic theology, Lutheran theology, Orthodox theology and Anglican theology, repentance plays a key role in confession and absolution.
Source: Wikipedia — Repentance in Christianity (CC BY-SA 4.0)