Verse 22

أَفَمَن شَرَحَ ٱللَّهُ صَدْرَهُۥ لِلْإِسْلَـٰمِ فَهُوَ عَلَىٰ نُورٍ مِّن رَّبِّهِۦ فَوَيْلٌ لِّلْقَـٰسِيَةِ قُلُوبُهُم مِّن ذِكْرِ ٱللَّهِ أُو۟لَـٰٓئِكَ فِى ضَلَـٰلٍ مُّبِينٍ

Is not the one whom God has opened his heart to accept peace; the one who has a light from his Lord upon him? Therefore woe to those whose hearts are too hard to remember God. They clearly have gone astray.