Now these things happened to them for ensamples. They are historical facts designed to teach great lessons, since God still deals on the same principles. Upon whom the ends of the world are come. The last of God's dispensations. Let him that thinketh he standeth, etc.
Presumption is the greatest of all dangers.
He who realizes his danger will be on his guard. See the case of Peter's fall, for an illustration. The safe way is, conscious of weakness, not to dally with temptation. There hath no temptation taken you but such as is common. Perhaps the Corinthians thought their temptations were usually severe, but these were only what human nature is exposed to.