God has bestowed from on high the best of all teachings: a Book that is consistent within itself, repeating its statements [of the truth] in manifold forms. It causes the skins of those who stand in awe of their Lord to shiver, but then their skins and hearts soften at the mention of God. Such is God’s guidance: He guides with it him that wills, whereas the one whom God lets go astray can never find any guide.