وَإِذْ تَأَذَّنَ رَبُّكَ لَيَبْعَثَنَّ عَلَيْهِمْ إِلَىٰ يَوْمِ ٱلْقِيَـٰمَةِ مَن يَسُومُهُمْ سُوٓءَ ٱلْعَذَابِ ۗ إِنَّ رَبَّكَ لَسَرِيعُ ٱلْعِقَابِ ۖ وَإِنَّهُۥ لَغَفُورٌ رَّحِيمٌ Qur’an Al-A'raf (7:167)Waith taaththana rabbuka layabAAathanna AAalayhim ila yawmi alqiyamati man yasoomuhum sooa alAAathabi inna rabbaka lasareeAAu alAAiqabi wainnahu laghafoorun raheemun
See Deut, xi. 28: "A curse if ye will not obey the commandments of the Lord your God but turn aside out of the way which I command you this day": also Deut, xxviii. 49; "The Lord shall bring a nation against thee from afar, from the end of the earth, as swift as the eagle flieth: a nation whose tongue thou shalt not understand"; and many other passages.