Eph4.26 Be angry and do not sin; do not let the sun go down on your anger, 27 and give no opportunity to the devil.
There are times when a believer may be righteously angry, for instance, when the character of God is impugned. In such cases anger is commanded: Be angry. Anger against evil can be righteous. But there are other times when anger is sinful. When it is an emotion of malice, jealousy, resentment, vindictiveness, or hatred because of personal wrongs, it is forbidden. Aristotle said, “Anybody can become angry—that is easy; but to be angry with the right person, to the right degree, at the right time, for the right purpose, and in the right way—that is not easy.”
If a believer gives way to unrighteous wrath, he should confess and forsake it quickly. Confession should be made both to God and to the victim of his anger. There should be no nursing of grudges, no harboring of resentments, no carrying over of irritations. Do not let the sun go down on your wrath. Anything that mars fellowship with God or with our brethren should immediately be made right.
Eph4:27 Unconfessed sins of temper provide the devil with a foothold or a base of operations. He is capable of finding plenty of these without our deliberately helping him. Therefore, we must not excuse malice, wrath, envy, hatred, or passion in our lives. These sins discredit the Christian testimony, stumble the unsaved, offend believers, and harm ourselves spiritually and physically.
 MacDonald, W., & Farstad, A. (1997). Believer's Bible Commentary : Old and New Testaments (Eph 4:26–27). Nashville: Thomas Nelson.
Published on Thursday, March 10, 2011 @ 6:51 AM CDT