Ecclesiastes 1:2, 12-14; 2:18-20, 22-25 - Vanity of vanities, says the Preacher, vanity of vanities! All is vanity. … I the Preacher have been king over Israel in Jerusalem. And I applied my heart to seek and to search out by wisdom all that is done under heaven. It is an unhappy business that God has given to the children of man to be busy with. I have seen everything that is done under the sun, and behold, all is vanity and a striving after wind. … I hated all my toil in which I toil under the sun, seeing that I must leave it to the man who will come after me, and who knows whether he will be wise or a fool? Yet he will be master of all for which I toiled and used my wisdom under the sun. This also is vanity. So I turned about and gave my heart up to despair over all the toil of my labors under the sun, … What has a man from all the toil and striving of heart with which he toils beneath the sun? For all his days are full of sorrow, and his work is a vexation. Even in the night his heart does not rest. This also is vanity. There is nothing better for a person than that he should eat and drink and find enjoyment in his toil. This also, I saw, is from the hand of God, for apart from Him who can eat or who can have enjoyment?