What does the Bible say about human anger?

James 1:20 emphasizes that human anger is counterproductive to achieving the righteousness that God desires. The text indicates that man's anger can prevent individuals from fulfilling God's requirements, leading to discord rather than a righteous life. In essence, James highlights that while God's anger may reflect righteous indignation, human anger often stems from self-interest and is tainted with sin. Such anger distracts us from God’s will, making us unfit to act with grace or receive grace.