God knows what any female bears [in her womb,] and by how much the wombs may fall short [in gestation,] and by how much they may increase [the average period]: for with Him everything is [created] in accordance with its scope and purpose. 8 He is the knower of the unseen and the visible, the Great, the Most-Exalted. 9 It is the same (to Him) whether any of you conceal his speech or declare it openly, whether he be hid by night or go forth freely by day. 10 For each (such person) there are (angels) in succession, before and behind him: They guard him by command of Allah. Allah does not change a people's lot unless they change what is in their hearts. But when (once) Allah willeth a people's punishment, there can be no turning it back, nor will they find, besides Him, any to protect. 11 It is He who shows you the lightning, for fear and hope, and Who produces laden clouds. 12 The thunder exalts His praise, and so are the angels are in awe of Him. He looses the thunderbolts and smites whosoever He will. Yet they dispute about Allah who is Mighty in power. 13 To Him is the Call of truth. Those to whom they call, other than Him, give them no answer. They are like he who stretches out his hands to the water and bids it rise to his mouth, it does not reach it! The prayers of the unbelievers goes astray. 14 To God bow all who are in the heavens and the earth, willingly or unwillingly, as do their shadows also in the mornings and the evenings. ۩ 15 Say: 'Who is the Lord of the heavens and of the earth?' Say: 'God.' Say: 'Then have you taken unto you others beside Him to be your protectors, even such as have no power to profit or hurt themselves?' Say: 'Are the blind and the seeing man equal, or are the shadows and the light equal? Or have they ascribed to God associates who created as He created, so that creation is all alike to them?' Say: 'God is the Creator of everything, and He is the One, the Omnipotent.' 16 Allah sends down water from the heavens and the river-beds flow, each according to its measure, and the torrent carries along a swelling scum. In like manner, from that metal which they smelt in the fire to make ornaments and utensils, there arises scum like it. Thus does Allah depict truth and falsehood. As for the scum, it passes away as dross; but that which benefits mankind abides on the earth. Thus does Allah explain (the truth) through examples. 17 For those who obey their Lord is excellence. For those who fail to obey, the reckoning will be hard, even if they possess and give as ransom all that there is on the earth, and as much more; and Hell will be their abode: How wretched is its wide expanse! 18