Ibn Kathir (Abridged)
Hafiz Ibn Kathirكُلَّمَا جَآءَهُمْ رَسُولٌ بِمَا لاَ تَهْوَى أَنفُسُهُمْ فَرِيقاً كَذَّبُواْ وَفَرِيقاً يَقْتُلُونَوَحَسِبُواْ أَلاَّ تَكُونَ فِتْنَةٌ فَعَمُواْ وَصَمُّواْ(Whenever there came to them a Messenger with what they themselves desired not - a group of them they called liars, and others among them they killed. They thought there will be no Fitnah (trial or punishment) so they became blind and deaf.) thinking that they would suffer no repercussions for of the evil that they committed. Consequently, they were blinded from the truth and became deaf, incapable of hearing the truth. For these reasons they were unable to be guided by it. Allah forgave that, then,وَصَمُّواْ ثُمَّ(yet they became blind and deaf) again,كَثِيرٌ مِّنْهُمْ وَاللَّهُ بَصِيرٌ بِمَا يَعْمَلُونَ(many of them, and Allah is the All-Seer of what they do.) He has perfect knowledge of what they do and whomever among them deserves the guidance and whomever deserves misguidance.