So they shall indeed give you the lie in what you say, then you shall not be able to ward off or help, and whoever among you is unjust, We will make him taste a great chastisement.

Say to those of the dwellers of the desert who were left behind: You shall soon be invited (to fight) against a people possessing mighty prowess; you will fight against them until they submit; then if you obey, Allah will grant you a good reward; and if you turn back as you turned back before, He will punish you with a painful punishment.