King David has written a personal copy of the Law and knows that in it Jehovah declares: “Vengeance is mine, and retribution. ”
فَإِذَا كَانَ أَعْدَاؤُهُ ‹ سَيُضْرَبُونَ عَلَى ٱلْفَكِّ › ،‏ فَٱللهُ هُوَ مَنْ سَيَتَوَلَّى هذِهِ ٱلْمُهِمَّةَ .‏