The Purpose of Anger

But again, if one is a man of violence, is this a matter of necessity? Yes, he will say, because his passion carries him away, and burns within him, and does not let the soul be at rest. Man, to act with violence is not the effect of anger, but of littleness of mind. Were it the effect of anger, all men, whenever they were angry, would never cease committing acts of violence. We have anger given us, not that we may commit acts of violence on our neighbors, but that we may correct those that are in sin, that we may bestir ourselves, that we may not be sluggish. Anger is implanted in us as a sort of sting, to make us gnash with our teeth against the devil, to make us vehement against him, not to set us in array against each other. We have arms, not to make us at war among ourselves, but that we may employ our whole armor against the enemy. Are you prone to anger? Be so against your own sins: chastise your soul, scourge your conscience, be a severe judge, and merciless in your sentence against your own sins. This is the way to turn anger to account. It was for this that God implanted it within us.

- John Chrysostom, homilies on Ephesians