Ecclesiastes 2:10-11; Ecclesiastes 2:17; Ecclesiastes 2:24-26

10 Anything I wanted, I would take. I denied myself no pleasure. I even found great pleasure in hard work, a reward for all my labors. 11 But as I looked at everything I had worked so hard to accomplish, it was all so meaningless—like chasing the wind. There was nothing really worthwhile anywhere.
17 So I came to hate life because everything done here under the sun is so troubling. Everything is meaningless—like chasing the wind.
24 So I decided there is nothing better than to enjoy food and drink and to find satisfaction in work. Then I realized that these pleasures are from the hand of God. 25 For who can eat or enjoy anything apart from him? 26 God gives wisdom, knowledge, and joy to those who please him. But if a sinner becomes wealthy, God takes the wealth away and gives it to those who please him. This, too, is meaningless—like chasing the wind.