Allah knows what every female bears, and by how much the wombs fall short (of their time or number) or exceed. Everything with Him is in (due) proportion. 8 (He is) the Knower of the unseen and the seen, the Great, the Exalted. 9 Alike (to Him) among you is he who conceals (his) words and he who speaks them openly, and he who hides himself by night and (who) goes forth by day. 10 Each has guardian angels before him and behind him, who watch him at God's command. God does not change the condition of a people's lot, unless they change what is in their hearts. But when God decrees punishment for a people, none can ward it off. Besides Him, they have no protector. 11 It is He who shows you lightening, [causing] fear and aspiration, and generates the heavy clouds. 12 And the thunder halloweth His praise, and so do the angels in awe of Him; and He sendeth the thunderbolts and smiteth therewith whomsoever He will. And they dispute concerning Allah, and He is strong in prowess. 13 To call on Him is true (supplication). For those they invoke other than Him do not answer them at all, except like a man who stretches his hands towards the water that it reach his mouth, but it will never reach it. Not more than error are the prayers of infidels. 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 and Sustainer of the heavens and the earth?" Say: "(It is) Allah." Say: "Do ye then take (for worship) protectors other than Him, such as have no power either for good or for harm to themselves?" Say: "Are the blind equal with those who see? Or the depths of darkness equal with light?" Or do they assign to Allah partners who have created (anything) as He has created, so that the creation seemed to them similar? Say: "Allah is the Creator of all things: He is the One, the Supreme and Irresistible." 16 [Whenever] He sends down water from the sky, and [once dry] river-beds are running high according to their measure, the stream carries scum on its surface; and likewise, from that [metal] which they smelt in the fire in order to make ornaments or utensils, [there rises] scum. In this way does God set forth the parable of truth and falsehood: for, as far as the scum is concerned, it passes away as [does all] dross; but that which is of benefit to man abides on earth. In this way does God set forth the parables 17 For those who respond to their Lord, are (all) good things. But those who respond not to Him,- Even if they had all that is in the heavens and on earth, and as much more, (in vain) would they offer it for ransom. For them will the reckoning be terrible: their abode will be Hell,- what a bed of misery! 18