Translation:

70. Unless he repents believes and works righteous deeds for Allah will change the evil of such persons into good and Allah is Oft-Forgiving Most Merciful

Notes (Tafseer)

3130. But even in the case of great crimes, if there is true repentance as tested by a changed fife in conduct, Allah's Mercy is available, and it will transform the repentant's nature from evil to good.