In endeavouring to warn Christians against resting in a mere profession of faith in Christ, he cites two great classes of instances which prove that there is often ultimate failure even where there has been considerable promise of success. First, he cites their own world-renowned Isthmian games, in which contests, as they all well knew, not every one who entered for the prizes was successful: "All run, but one receiveth the prize." Paul does not mean that salvation goes by competition; but he means that as in a race not all who run run so as to obtain the prize for which they run, so in the Christian life not all who enter it put out sufficient energy to bring them to a happy issue. The mere fact of recognising that the prize is worth winning and even of entering for it is not enough. And then he cites another class of instances with which the Jews in the Corinthian Church were familiar. "_All_ our fathers," he says, "were under the cloud, and _all_ passed through the sea, and _all_ were baptized unto Moses in the cloud and in the sea." All of them without exception enjoyed the outward privileges of God's people, and seemed to be in a fair way of entering the promised land; and yet the majority of them fell under God's displeasure, and were overthrown in the wilderness. Therefore "let him that thinketh he standeth take heed lest he fall." The Isthmian games, then, one of the most ancient glories of Corinth, furnished Paul with the readiest illustration of his theme. These games, celebrated every second year, had in ancient times been one of the chief means of fostering the feeling of brotherhood in the Hellenic race. None but Greeks of pure blood who had done nothing to forfeit their citizenship were allowed to contend in them. They were the greatest of national gatherings; and even when one State was at war with another, hostilities were suspended during the celebration of the games. And scarcely any greater distinction could be earned by a Greek citizen than victory in these games. When Paul says that the contending athletes endured their severe training and underwent all the privations necessary "to obtain a corruptible crown," we must remember that while it is quite true that the wreath of pine given to the victor might fade before the year was out, he was welcomed home with all the honours of a victorious general, the wall of his town being thrown down that he might pass in as a conqueror, and his statue being set up by his fellow-citizens. In point of fact, the names and deeds of many of the victors may yet be read in the verses of one of the greatest of Greek poets, who devoted himself, as laureate of the games, to the celebration of the annual victories.