Ecclesiastes 4:8; Ecclesiastes 9:8; Ecclesiastes 10:3

8 There was a certain man without a dependent, having neither a son nor a brother, yet there was no end to all his labor. Indeed, his eyes were not satisfied with riches and he never asked, "And for whom am I laboring and depriving myself of pleasure?" This too is vanity and it is a grievous task.

8 Let your clothes be white all the time, and let not oil be lacking on your head.

3 Even when the fool walks along the road, his sense is lacking and he demonstrates to everyone that he is a fool.