Except if after this they (acknowledge their mistake and) repent and correct themselves (amend their wrongdoings) indeed Allah is the Ghafur, the Rahim.
Sayyed Abbas Sadr-Ameli
Except those who repent after that and amend, then verily Allah is Forgiving, Merciful
Al-muntakhab fi tafsir al-Qur'an al-Karim
However the penitents who in lowliest plight repentant stood and reformed themselves so their thoughts are governed by a new and divine principle, shall find that Allah is Ghafurun and Rahimun