O believers, if you obey the unbelievers they will turn you upon your heels, and you will turn about, losers. 149 But Allah is your Protector, and He is the best of helpers. 150 We will cast into the hearts of the unbelievers terror, for that they have associated with God that for which He sent down never authority; their lodging shall be the Fire; evil is the lodging of the evildoers. 151 And God made good His promise to you when by His leave you were about to destroy your foes, but then your courage failed you and you disagreed among yourselves [concerning the Prophet's direction] and disobeyed it, after He had brought you within sight of what you wished for, some of you desired the goods of this world and some of you desired the Hereafter, then in order that He might put you to the test, He prevented you from defeating your foes. But now He has pardoned you: God is most gracious to the believers. 152 ۞ Remember, as you were rushing up (the hill) without turning back to look, though the Prophet was calling you from the rear, He requited you with anguish for an anguish that you do not fret for missed opportunity and what befell you, for God is aware of all that you do, 153 Then, after sorrow He sent down peace [of mind] upon you in the shape of drowsiness that overcame some of you, but there were others who were anxious only about themselves. They entertained false notions about God, like the notions of the days of ignorance. "Have we any say in the matter?" they asked. Say to them, "All is in the hands of God." They conceal in their hearts what they would not reveal to you. They say, "Had we had any say in the matter, none of us would have been killed here." Say to them, "Had you stayed in your homes, those whose death had been decreed would nevertheless have gone forth to the places where they were destined to die." And all this befell you so that God might test what is in your minds. And in order to purify what was in your hearts. For God is aware of your innermost thoughts. 154 Indeed those of you who turned back on the day when the two armies met – for it was the devil who caused them to waver, because of some of their deeds; and undoubtedly Allah has forgiven them; indeed Allah is Oft Forgiving, Most Forbearing. 155