4ذٰلِكَ بِأَنَّهُم شاقُّوا اللَّهَ وَرَسولَهُ ۖ وَمَن يُشاقِّ اللَّهَ فَإِنَّ اللَّهَ شَديدُ العِقابِA. J. ArberryThat is because they made a breach with God and His Messenger; and whosoever makes a breach with God, God is terrible in retribution.