¹ sn A quotation from Ps 4:4. Although several translations render the phrase Be angry and do not sin as “If you are angry, do not sin” such is unlikely on a grammatical, lexical, and historical level (see D. B. Wallace, “᾿Οργίζεσθε in Ephesians 4:26: Command or Condition?” CTR 3 [1989]: 352-72). The idea of vv. 26-27 is as follows: Christians are to exercise a righteous indignation over sin in the midst of the believing community (v. 26a; note that v. 25 is restricting the discussion to those in the body of Christ). When other believers sin, such people should be gently and quickly confronted (v. 26b), for if the body of Christ does not address sin in its midst, the devil gains a foothold (v. 27). “Entirely opposite of the ‘introspective conscience’ view, this text seems to be a shorthand expression for church discipline, suggesting that there is a biblical warrant for δικαία ὀργή [dikaia orgh] (as the Greeks put it) – righteous indignation” (ExSyn 492).