What does the Bible say about anger?
Anger itself is not always sin, "be ye angry, and sin not" (Eph 4:26), but it must not be nursed or allowed to control us. God is patient and "slow to anger" (Ps 103:8), and Scripture warns that "the wrath of man worketh not the righteousness of God" (Jas 1:20).
What the text states
There is a righteous anger, Jesus was angry at hardness of heart (Mark 3:5) and cleansed the temple, so anger is not always sin. But Paul sets limits: "be ye angry, and sin not: let not the sun go down upon your wrath" (Eph 4:26), do not let it linger, feed bitterness, or give the devil a foothold (4:27). "He that is slow to anger is better than the mighty" (Prov 16:32). The cure is to be "swift to hear, slow to speak, slow to wrath" (Jas 1:19), and to forgive as we have been forgiven (Eph 4:32).
Go deeper
Checked 2026-09-29 by Darren. 62 Scripture citations verified against the KJV rows. Wave 5. 62 quoted fragments table-passed against the verses table, splitting at every ellipsis. FOUR CORRECTIONS, each to the KJV row: Acts 4:12 "in none other" is not contiguous, replaced with "none other name under heaven given among men, whereby we must be saved"; Deut 1:39 "have no knowledge" corrected to "had no knowledge"; Eph 3:2 "dispensation of grace" corrected to "dispensation of the grace of God"; Rom 11:23 "shall be graffed in again" corrected to "shall be graffed in" (the KJV runs "shall be graffed in: for God is able to graff them in again").
wsb.bible/answers/does-the-bible-say-about-anger