âBe angry, and yet do not sin; do not let the sun go down on your anger, and do not give the devil an opportunityâ (Ephesians 4:26â27).Parorgismos (anger) is not momentary outward, boilingâover rage or inward, seething resentment, but rather a deepâseated, determined and settled conviction. As seen in this passage, its New Testament use can represent an emotion good or bad, depending on motive and purpose. . . .