Ephesians 4:31 - "Let all bitterness, wrath, anger, clamor, and evil speaking be put away from you, with all malice."
When we are angry with someone we see the root of murder. Anger is often a physical response of defense in a dangerous situation. We are threatened, because we are hurt or afraid. Our emotions blind us to sorting out if we are angry for selfish reasons or godly ones. A parent can have anger rise up in them seeing sin in their child, but the parent must control it and let it motivate them to godly discipline. If mom or dad lets the emotion get away from them and they spank or speak angrily, it is ungodly and will not bring the fruit God promises from discipline. An angry emotion at wrongdoing does not justify what you do with that feeling. The media doesn’t help us here, mixing reporting of issues with angry debates every day, telling us every day that we have a right to be angry when we disagree. Be angry about a sin you see, but don’t attack the person. Help them get away from their sin. Anger takes offense at small things, magnifies those small things, and refuses to forgive anyone.
Jesus bore the righteous anger of God for our sinful anger. He was angry with sin, and dealt with it by patient, clear teaching, and sacrifice. His self-control saved us from our anger.