۞ It is God who created you of weakness, then after weakness gave you strength, then after strength will give you weakness and grey hair. Surely He makes whatever He wills. He is all-knowing and all-powerful. 54 And on the day when the Hour riseth the guilty will vow that they did tarry but an hour - thus were they ever deceived. 55 And those who have been vouchsafed knowledge and belief will say: assuredly ye have tarried according to the decree of Allah until the Day of Upraising; so this is the Day of Upraising, but ye were wont not to know. 56 And so, on that Day their excuse will be of no avail to those who were bent on evildoing, nor will they be allowed to make amends. 57 And We have certainly presented to the people in this Qur'an from every [kind of] example. But, [O Muhammad], if you should bring them a sign, the disbelievers will surely say, "You [believers] are but falsifiers." 58 In this way God seals the hearts of those who do not [want to] know [the truth], 59 So have patience. The promise of God is surely true; and let not those who do not believe make you relax (your endeavours). 60