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 seen, the Great, the Exalted. 9 It makes no difference whether you converse in secret or aloud, whether you hide under the cloak of night or walk about freely in the light of 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 He It is who sheweth the lightning unto you for fear and for desire, and bringeth up the clouds heavy. 12 And the thunder declares His glory with His praise, and the angels too for awe of Him; and He sends the thunderbolts and smites with them whom He pleases, yet they dispute concerning Allah, and He is mighty in prowess. 13 Unto Him [alone] is due all prayer aiming at the Ultimate Truth, since those [other beings or powers] whom men invoke instead of God cannot respond to them in any way - [so that he who invokes them is] but like one who stretches his open hands towards water, [hoping] that it will reach his mouth, the while it never reaches him. Hence, the prayer of those who deny the truth amounts to no more than losing oneself in grievous error. 14 And unto Allah (Alone) falls in prostration whoever is in the heavens and the earth, willingly or unwillingly, and so do their shadows in the mornings and in the afternoons. ۩ 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 He sendeth down water from the heaven, so that the valleys flow according to their measure; then the torrent beareth the scum on top, and from that over which they kindle a fire seeking ornament or goods - ariseth a scum like thereto: Thus doth Allah propound the truth and falsity. Then as for the scum, it departeth as rubbish, and as for that which benefiteth the mankind, it lasteth on the earth: Thus doth Allah propound the similitudes. 17 of those who have responded to their Sustainer with a goodly response, and of those who did not respond to Him. [As for the latter,] if they possessed all that is on earth, and twice as much, they would surely offer it as ransom [on the Day of Judgment]: a most evil reckoning awaits them, and their goal is hell: and how evil a resting-place! 18