۞ God is He that created you of weakness, then He appointed after weakness strength, then after strength He appointed weakness and grey hairs; He creates what He will, and He is the All-knowing, the 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 Those who have received knowledge and have faith will say, "By the decree of God, you have remained for the exact period which was mentioned in the Book of God about the Day of Resurrection. This is the Day of Resurrection, but you did not know." 56 So on that Day no excuse of theirs will avail the transgressors, nor will they be invited (then) to seek grace (by repentance). 57 Indeed, We have struck for the people in this Koran every manner of similitude; and if thou bringest them a sign, those who are unbelievers will certainly say, 'You do nothing but follow falsehood.' 58 In this way God seals the hearts of those who do not [want to] know [the truth], 59 So be patient. Indeed, the promise of Allah is truth. And let them not disquiet you who are not certain [in faith]. 60