It is We who relate to you, [O Muhammad], their story in truth. Indeed, they were youths who believed in their Lord, and We increased them in guidance. 13 And We braced their hearts when they stood forth and said: our Lord is the Lord of the heavens and the earth; never we shall call upon a god beside him; for then we shall be saying an abomination. 14 These our people have taken to them other gods, apart from Him. Ah, if only they would bring some clear authority regarding them! But who does greater evil than he who forges against God a lie? 15 "When ye turn away from them and the things they worship other than Allah, betake yourselves to the Cave: Your Lord will shower His mercies on you and disposes of your affair towards comfort and ease." 16 ۞ And thou woudst behold the sun when it riseth veering away from their cave on the right, and when it setteth, passing them by on the left, while they were in the spacious part thereof; that is of the signs of Allah. Whomsoever Allah guideth, he indeed is the guided; and whomsoever He sendeth astray, for him thou wilt never find a directing friend. 17