HAVE THE STORIES of those [deniers of the truth] who lived before you never yet come within your ken - [the stories of] the people of Noah, and of [the tribes of] `Ad and Thamud, and of those who came after them? None knows them [now] save God. There came unto them their apostles with all evidence of the truth -but they covered their mouths with their hands and answered: "Behold, we refuse to regard as true the message with which you [claim to] have been entrusted; and, behold, we are in grave doubt, amounting to suspicion, about [the meaning of] your call to us!"