Ephesians Four

Therefore, putting away lying, “Let each one of you speak truth with his neighbor,” for we are members of one another.  “Be angry, and do not sin”: f do not let the sun go down on your wrath, nor give place to the devil.  Let him who stole steal no longer, but rather let him labor, working with his hands what is good, that he may have something to give him who has need. Let no corrupt word proceed out of your mouth, but what is good for necessary edification, that it may impart grace to the hearers. And do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption.  Let all bitterness, wrath, anger, clamor, and evil speaking be put away from you, with all malice.  And be kind to one another, tenderhearted, forgiving one another, even as God in Christ forgave you.

 

This is taken from the fourth psalm, as I am sure no one doubts. It may seem contrary to what is said of anger elsewhere, that we must put away all anger … It is an oversimplified interpretation that does harm, especially when people imagine that the constraints against anger are being here relaxed. It is not only among us but among philosophers too that anger is spoken of in a double sense. Anger emerges first when we are understandably aroused by a natural stimulus after being wounded by an injury. Or it arises when, after the impulse has abated and our rage has been restrained, the mind is capable of judgment but nonetheless we find ourselves desiring vengeance upon the one who is thought to have inflicted the wound. In this [verse] Paul is speaking of the first kind of anger. He is allowing to us as vulnerable humans that in the face of some undeserved event we may be moved to some level of annoyance, as if a light breeze were disturbing the serenity of the mind. But on no account are we to be carried into swelling rapids by the impulse of rage.

St. Jerome