Ecclesiastes 2:17-19

Therefore I hated life My life, though accompanied with so much honour, and pleasure, and wisdom, was a burden to me, and I was ready to wish, either that I had never been born, or that I might speedily die; because the work, &c., is grievous All human designs and works are so far from yielding me satisfaction, that the consideration of them increases my discontent. I hated all my labour All these riches and buildings, and other fruits of my labour, were aggravations of my misery. Because I should leave it, &c. Because I must, and that everlastingly, leave them all behind me. And who knoweth whether he shall be wise or a fool? Who will undo all that I have done, and turn the effects of my wisdom into instruments of his folly. Some think he had such an opinion of Rehoboam.