Mixing of good and evil deeds

وَءَاخَرُونَ ٱعْتَرَفُوا۟ بِذُنُوبِهِمْ خَلَطُوا۟ عَمَلًا صَـٰلِحًا وَءَاخَرَ سَيِّئًا عَسَى ٱللَّهُ أَن يَتُوبَ عَلَيْهِمْ ۚ إِنَّ ٱللَّهَ غَفُورٌ رَّحِيمٌ

And [there are] others who have acknowledged their sins. They had mixed [i.e., polluted] a righteous deed with another that was bad. Perhaps Allāh will turn to them in forgiveness. Indeed, Allāh is Forgiving and Merciful.