If they fall in sin or wrong their souls, they remember God and ask forgiveness for their sins – and who forgives the sins except God – and they do not persist in sins, knowingly.
وَالَّذينَ إِذا فَعَلوا فٰحِشَةً أَو ظَلَموا أَنفُسَهُم ذَكَرُوا اللَّهَ فَاستَغفَروا لِذُنوبِهِم وَمَن يَغفِرُ الذُّنوبَ إِلَّا اللَّهُ وَلَم يُصِرّوا عَلىٰ ما فَعَلوا وَهُم يَعلَمونَ
wallazeena izaa fa’aloo faahishatan aw zalamooo anfusahum zakarul laaha fastaghfaroo lizunoobihim; wa mai yaghfiruz zunooba illal laahu wa lam yusirroo ‘alaa maa fa’aloo wa hum ya’lamoon