وَٱلَّذِينَ ءَامَنُوا۟ وَعَمِلُوا۟ ٱلصَّـٰلِحَـٰتِ لَنُكَفِّرَنَّ عَنْهُمْ سَيِّـَٔاتِهِمْ وَلَنَجْزِيَنَّهُمْ أَحْسَنَ ٱلَّذِى كَانُوا۟ يَعْمَلُونَ Qur’an Al-Ankabut (29:7)Wa a lla th eena a manoo waAAamiloo a l ssa li ha ti lanukaffiranna AAanhum sayyi a tihim walanajziyannahum a h sana alla th ee k a noo yaAAmaloon a
In striving to purify our Faith and our Life, we are enabled to avoid the consequences of our misdeeds for Allah will forgive any evil in our past, and help to the attainment of a Future based on the best of what we have done rather than on the poor average of our own merits. The atonement or expiation is by Allah's Mercy, not by our merits or the merits or sacrifice of anyone else.