Bible verses about anger

My beloved brothers, understand this: Everyone should be quick to listen, slow to speak, and slow to anger, for man’s anger does not bring about the righteousness that God desires.

"Be Quick to Listen, Slow to Anger"

A gentle answer turns away wrath, but a harsh word stirs up anger.

A Gentle Answer Turns Away Wrath

“Be angry, yet do not sin.” Do not let the sun set upon your anger, and do not give the devil a foothold. He who has been stealing must steal no longer, but must work, doing good with his own hands, that he may have something to share with the one in need. Let no unwholesome talk come out of your mouths, but only what is helpful for building up the one in need and bringing grace to those who listen. And do not grieve the Holy Spirit of God, in whom you were sealed for the day of redemption. Get rid of all bitterness, rage and anger, outcry and slander, along with every form of malice. Be kind and tenderhearted to one another, forgiving each other just as in Christ God forgave you.

"In Your Anger Do Not Sin"

And Adam had relations with his wife Eve, and she conceived and gave birth to Cain. Later she gave birth to Cain’s brother Abel. So in the course of time, Cain brought some of the fruit of the soil as an offering to the LORD, while Abel brought the best portions of the firstborn of his flock. but He had no regard for Cain and his offering. So Cain became very angry, and his countenance fell. “Why are you angry,” said the LORD to Cain, “and why has your countenance fallen? If you do what is right, will you not be accepted? But if you refuse to do what is right, sin is crouching at your door; it desires you, but you must master it.” Then Cain said to his brother Abel, “Let us go out to the field.” And while they were in the field, Cain rose up against his brother Abel and killed him. And the LORD said to Cain, “Where is your brother Abel?” “What have you done?” replied…

Cain's Anger and Its Consequences