We sent down messengers before you and gave them wives and children. Yet it was not possible for a messenger to bring a sign, save by the command of God. Every age has had its revelation. 38 God blots out, and He establishes whatsoever He will; and with Him is the Essence of the Book. 39 And whether We show you a promise that is given to them, or call you to Us before it – so in any case, upon you is just the conveyance*, and for Us is the taking of the account. (* Of the message.) 40 See they not how we aim to the land, reducing it of its outlying parts? (When) Allah doometh there is none that can postpone His doom, and He is swift at reckoning. 41 Those who lived before them also devised many a plot, but the master plot rests with Allah. He knows what everyone does. The deniers of the truth will soon come to know whose end is good. 42 The disbelievers say, “You are not a (Noble) Messenger (of Allah)”; proclaim, “Allah is a Sufficient Witness between me and you, and (so is) he who has knowledge of the Book.” 43