You have heard that it was said to the people long ago, 'Do not murder, and anyone who murders will be subject to judgment. But I tell you that…anyone who is angry with his brother will be subject to judgment. Matthew 5:21
Anger is a dangerous emotion that can kill or heal. It is natural, normal and universal so the fact that the Bible talks about it so much indicates how important God thinks it is for us to understand and manage.
St. Paul gave us the following instructions in Ephesians 4. You may all be angry, but be very careful because it is easy to miss that mark and hurt someone when you are angry. Like Jesus, Paul says we are all ind anger of being judge when we play with fire and anger is fiery.