The events in the lives of the prophets have been narrated in the Quran, so that the later dayees should learn a lesson from them. In these events the preacher sees that their addressee-communities quarrelled with them, abused them by giving a twist to their straightforward discourses, subjected them to all sorts of hardship and rejected them as if they had no value at all. But, finally God helped them and their word carried the day. All the attacks of their opponents failed. The different fates of the believers and unbelievers became manifest in their initial form in this world itself, and will appear in their most perfect form in the Hereafter. With the help of these examples, the call-giver acquires the confidence, based on history, that there is no question of his being disappointed by or being terrified of the difficulties faced by him while calling for the Truth. Such difficulties always arise in dawah work, but he knows that he too will finally be successful, just as success was achieved by all the previous prophets.