Divine wisdom (al-hikmah)

وَلَوْلَا فَضْلُ ٱللَّهِ عَلَيْكُمْ وَرَحْمَتُهُۥ وَأَنَّ ٱللَّهَ تَوَّابٌ حَكِيمٌ

And if not for the favor of Allāh upon you and His mercy... and because Allāh is Accepting of Repentance and Wise.