(22:39) Permission (to fight) has been granted to those for they have been wronged. Verily Allah has the power to help them
(22:40) those who were unjustly expelled from their homes for no other reason than their saying: "Allah is Our Lord." If Allah were not to repel some through others, monasteries and churches and synagogues and mosques wherein the name of Allah is much mentioned, would certainly have been pulled down.Allah will most certainly help those who will help Him. Verily Allah is Immensely Strong, Overwhelmingly Mighty.