Say: ‘I have no power to, avert, hurt, from, myself, or to, bring, benefit, except as God might will, to give me power over: so how could I possess the power to bring about the chastisement? For every community there is an appointed time, a fixed period until they perish. When their time comes, they cannot put it off, they will not miss it, by a single hour, nor bring it forward, [nor] overtake it’.