Every Christian’s life-purpose must be to glorify God. This is the believer’s official calling. Everything we say and do, all our obedience to God’s commands, all our relationships with others, all the use we make of the gifts, talents, and opportunities that God gives us, all our enduring of adverse situations and human hostility, must be so managed as to give God honor and praise for His goodness to those on whom He sets His love (1 Cor. 10:31; cf. Matt. 5:16; Eph. 3:10; Col. 3:17). Equally important is the truth that every Christian’s full-time employment must be to please God. . . . Pleasing God in everything must be our goal (2 Cor. 5:9; Col. 1:10; 1 Thess. 2:4; 4:1).
J. I. Packer, Concise Theology: A Guide to Historic Christian Beliefs, 185