Ecclesiastes 3:12; Ecclesiastes 3:13; Ecclesiastes 3:22

12 I know that there is nothing better for them than to rejoice and to do good in one's lifetime;

13 moreover, that every man who eats and drinks sees good in all his labor -it is the gift of God.

22 I have seen that nothing is better than that man should be happy in his activities, for that is his lot. For who will bring him to see what will occur after him?