As for those who reject Our signs as false, We shall lead them, step by step, to their ruin without their even perceiving it. 182 And I give them rein: verily My contrivance is firm. 183 Have they not reflected that their companion is not mad? He is only a plain warner. 184 Will they not ponder upon the kingdom of the heavens and the earth, and all that Allah created, and that it may be that their term is drawing near? So, in which speech will they believe thereafter? 185 Whomsoever Allah sendeth astray, no guide is then for him, and He letteth them wander perplexed in their exorbitance. 186 They ask you (Muhammad), "When will the Day of Judgment be?" Tell them, "My Lord knows best. It is He who has appointed its time. It will be a grave hour both in the heavens and the earth. It will only approach you suddenly." They say, "It seems that you know about the coming of the Day of Judgment." Tell them, "Only God knows about it and most people do not know." 187 Say thou: I possess no power over benefit or hurt to myself save as Allah willeth; and had I knowledge of the unseen I would have amassed ample good, and evil would not have touched me. I am naught but a warner and a bringer of tidings unto a people who believe. 188