The title of Chapter 2 is an adaptation of the answer to the first question of the Westminster Shorter Catechism: "What is the chief end of man?" Answer: "Man’s chief end is to glorify God, and to enjoy him forever." The entire chapter is given over to this key idea that these two ideas, glorifying God and enjoying God, are intimately and inextricably, tied together. As Piper points out, "you do not have to choose between glorifying God and enjoying God." In fact, "if we do not rejoice in God, we do not glorify God as we ought." If we understand this, we understand why we must delight in God.

Piper points us to the work of Jonathan Edwards in The End for Which God Created the World." In it, Edwards writes, "God is glorified not only by His glory's being seen, but by its being rejoiced in." God is glorified when we find pleasure and joy in His glory. Piper summarizes this in what he calls "the rock-solid foundation of Christian Hedonism":

God is most glorified in us when we are most satisfied in him.

Thus, there are not two chief ends (plural) of man; there is one. That chief end is to glorify God BY enjoying Him forever. (1 Cor 10:31; Rom 11:36; Psa 35:27; 37:4; 73:25-28)