Believers, if you obey those who disbelieve they will turn you upon your heels and you will turn to be losers. 149 But Allah is your Protector, and He is the best of helpers. 150 We will cast terror into the hearts of those who disbelieve, because they set up with Allah that for which He has sent down no authority, and their abode is the fire, and evil is the abode of the unjust. 151 And indeed Allah has proved true His promise to you, when you used to slay the disbelievers by His command; until the time you people lost courage and disputed about the order and disobeyed after Allah had shown you what pleases you; some of you desired the world, and some of you desired the Hereafter; thereafter He turned you away from them in order to test you; and undoubtedly He has forgiven you; and Allah is Most Munificent towards the Muslims. 152 ۞ When you were running away and did not look back at anyone, while the Messenger was calling to you from behind, He paid you back with one sorrow after another, so that you might not grieve for what you lost, nor for what befell you. God is aware of what you do. 153 Then He sent down upon you, after grief, security -- a slumber overcoming a party of you; and a party themselves had grieved, thinking of God thoughts that were not true such as the pagans thought, saying, 'Have we any part whatever in the affair?' Say: 'The affair belongs to God entirely.' They were concealing in their hearts that they show not to thee, saying, 'Ah, if we had had a part in the affair, never would we have been slain here.' Say: 'Even if you had been in your houses, those for whom slaying was appointed would have sallied forth unto their last couches'; and that God might try what was in your breasts, and that He might prove what was in your hearts; and God knows the thoughts in the breasts. 154 Those of you who turned away the day the two hosts encountered -- Satan made them slip for somewhat they had earned; but God has pardoned them; God is All-forgiving, All-clement. 155