And (remember) when your Lord declared that He would certainly keep on sending against them (i.e. the Jews), till the Day of Resurrection, those who would afflict them with a humiliating torment. Verily, your Lord is Quick in Retribution (for the disobedient, wicked) and certainly He is Oft-Forgiving, Most Merciful (for the obedient and those who beg Allah's Forgiveness).