King Solomon was the wisest man who ever lived. We infer that he is the author of Ecclesiastes because he identifies himself as "King in Jerusalem," and "Son of David." Being the wisest man who ever lived was obviously not all he thought it would be. Solomon, despite his wisdom, still made many very unwise decisions in his life. Undoubtedly, these decisions were the source of his vexation, because he knew that they were poor choices, and he could see what the outcome would be, yet he made them anyway.
Solomon begins his book about the meaning of life in quite a depressing fashion, saying that all is vanity. But when you think about it, it is true that nothing has changed in all the years of earth's existence. People behave as they always have and have the same problems that they always have. If this life is vain, then what is the point? Stay with us and find out as we explore this very important book of God's Wisdom.