Ecclesiastes 3:11-14

He has made everything beautiful and appropriate in its time. He has also planted eternity [a sense of divine purpose] in the human heart [a mysterious longing which nothing under the sun can satisfy, except God]—yet man cannot find out (comprehend, grasp) what God has done (His overall plan) from the beginning to the end. I know that there is nothing better for them than to rejoice and to do good as long as they live; and also that every man should eat and drink and see and enjoy the good of all his labor—it is the gift of God. I know that whatever God does, it endures forever; nothing can be added to it nor can anything be taken from it, for God does it so that men will fear and worship Him [with awe-filled reverence, knowing that He is God]. [Ps 19:9; James 1:17]