[Remember, O believers], when Allah promised you one of the two groups - that it would be yours - and you wished that the unarmed one would be yours. But Allah intended to establish the truth by His words and to eliminate the disbelievers
[Remember] when He overwhelmed you with drowsiness [giving] security from Him and sent down upon you from the sky, rain by which to purify you and remove from you the evil [suggestions] of Satan and to make steadfast your hearts and plant firmly thereby your feet.
[Remember] when your Lord inspired to the angels, "I am with you, so strengthen those who have believed. I will cast terror into the hearts of those who disbelieved, so strike [them] upon the necks and strike from them every fingertip."