Community Life: Having reminded us of our clean break with the old man (4:17), Paul now returns (4:1-16) to the issue of our community life. As the people of God, whose minds are being renewed (4:23), we live as a community that imitates God (4:24) and attains to Christ’s fullness (4:13). Paul first exhorts us toward godliness in the areas of honesty, anger and generosity.
Honesty, Anger and Generosity: Honesty: Pagans lie to one another. They do this to save-face, avoid embarrassment, gain dominance, manipulate, etc. This is not us. We left that old life behind, and we now speak with honesty with one another. We do this because we belong to one another (“members of one another”). Unlike dysfunctional pagan groups, we actually love one another (4:2, 15, 16). Anger: Among saints, there is a place for anger that imitates God’s righteous anger. But we must never confuse this with sinful anger. This is especially important because we have an enemy who wants to drag us into sin. Hence, we are called to deal with whatever may be exasperating us right away—before the sun goes down. Generosity: Unlike pagans who steal from others (in a variety of ways), we work hard (“labor”) and do that which is good (contra stealing), not to amass riches for ourselves (Matt. 6:19-21), but to be generous and to share with those in need (1 Tim. 6:18; Acts 4:34-35).
 With the “Therefore” (4:25), Paul argues that as converted people, we are to live as Christ’s community.
 We who are heaven-bound (Rev. 21:8) live by Christ's standard of integrity (Matt. 5:37). Cf. also Col. 3:9-10.
 Cf. Mark 3:1-5; 2 Cor. 7:11. We ought to hate sin and share in God’s likeness in this regard (4:24; Ps. 7:11).
 In 4:31, Paul calls us to put aside sinful anger (alongside other sins). The Lord taught us that anger shares the same indictment as murder (Matt. 5:21-22). Cf. also James 1:19-20 and Gal. 5:19-20.
 The term for “anger [par-or-gis-mos (παροργισμός)]” is more precisely “the cause of your anger" (NET).
 The present tense of “He who steals” should not be stressed. The Greek here does not require it, and there is no such a thing as a “Christian thief” (1 Cor. 6:9-10). “Him who stole” (NKJV) better fits the context here.