This is by way of admonition that follows immediately the proof of the statement in the preceding verse. This removes also any doubt that might arise concerning that decisive statement. One might question it like this: If the creation is really based on the survival of truth, why is it that every follower of falsehood and every wrongdoer is not destroyed forthwith? This is the answer: O foolish man, do you think that it is difficult for Allah to destroy such a person? Or, do you think that Allah does not destroy him because he has some close relationship with Him? If this is not so, and you yourself know that it is not so, you should understand it well that any community that follows falsehood and commits wicked deeds is always in danger of being removed to make room for a better community to work in its stead. If respite is given and the threat does not take a practical shape, it does not mean that there is no danger at all. Instead of being neglectful, you should make use of every moment of this respite and realize that the false system which you are following is not stable and durable. You should, therefore, build it on stable and durable foundations.