We relate to you their story with the truth; surely they were youths who believed in their Lord and We increased them in guidance. 13 And We made firm their hearts when they stood up and said, "Our Lord is the Lord of the heavens and the earth. Never will we invoke besides Him any deity. We would have certainly spoken, then, an excessive transgression. 14 These people of ours have taken to worshipping [other] deities instead of Him, without being able to adduce any reasonable evidence in support of their beliefs; and who could be more wicked than he who invents a lie about God? 15 So, when you have gone apart from them and that they serve, excepting God, take refuge in the Cave, and your Lord will unfold to you of His mercy, and will furnish -- you with a gentle issue of your affair.' 16 ۞ You may well have seen when the sun came up it moved away to the right of the cave, and when it went down it turned away to the left, and they stayed in its open space. This was among the signs of God. Whoever is guided by God follows the right path; and whosoever goes astray will not find a guide to show him the way. 17