Repentance and Reformation (Tawbah wa Islah)

ثُمَّ إِنَّ رَبَّكَ لِلَّذِينَ عَمِلُوا۟ ٱلسُّوٓءَ بِجَهَـٰلَةٍ ثُمَّ تَابُوا۟ مِنۢ بَعْدِ ذَٰلِكَ وَأَصْلَحُوٓا۟ إِنَّ رَبَّكَ مِنۢ بَعْدِهَا لَغَفُورٌ رَّحِيمٌ

Then, indeed your Lord, to those who have done wrong out of ignorance and then repent after that and correct themselves - indeed, your Lord, thereafter, is Forgiving and Merciful.