James 1:19-20 NASB
You know this, my beloved brothers and sisters. Now everyone must be quick to hear, slow to speak, and slow to anger;  for a man’s anger does not bring about the righteousness of God.
Anger must be kept in check, be seen for what it is and dealt with accordingly. If not, the results produce unrighteousness. Though it is very real and can easily creep into our lives, it never produces positive results.
So check anger at the door and don’t allow it to come in and stay!