He it is who turned out of their homes, at the time of [their] first gathering [for war], such of the followers of earlier revelation as were bent on denying the truth. You did not think [O believers] that they would depart [without resistance] - just as they thought that their strongholds would protect them against God: but God came upon them in a manner which they had not expected, and cast terror into their hearts; [and thus] they destroyed their homes by their own hands as well as the hands of the believers. Learn a lesson, then, O you who are endowed with insight!