The word Ishtarau which means ‘sold’ is used. This is because, they are materialists who do not understand except the language of business and wealth and via demonstrations using gold and silver coins and the dollar. This is their life. When they disbelieved in what Allah U sent down in the Holy Qur’an, it is as if they had bought disbelief, which is a business transaction at a loss.
The word Kufr here means denial and concealment, not killing and terrorism as claimed by the terrorists, when they accuse others of disbelief.
The word Al-Baghyu means aggression and the exceeding of the limits.
﴾أَنْ يُنَزِّلَ اللَّهُ مِنْ فَضْلِهِ عَلَى مَنْ يَشَاءُ مِنْ عِبَادِهِ ﴿ “that Allah would send down His favour upon whom He wills from among His servants.”