Ecclesiastes 3:11-13

11He hath made every thing beautiful in its time: also he hath set the world in their heart, so that no man can find out the work that God maketh from the beginning to the end. 12I know that there is no good in them, but for a man to rejoice, and to do good in his life. 13And also that every man should eat and drink, and enjoy the good of all his labour, it is the gift of God.