Salmos 37

Salmos 37:8

If, by the prudent use of reason, you could cut away the bitter root of indignation, you would remove many other vices along with this, their source. Deceit, suspicion, faithlessness, malice, treachery, rashness, and a whole thicket of evils like these are offshoots of this vice.… It is a malady on the soul, a dark mist over the reason. It brings estrangement from God, forgetfulness of the ties of kindred, cause for a strife, a full measure of disaster. It is a wicked demon coming to birth in our very souls, taking prior possession of our interior, like a shameless tenant, and barring entrance to the Holy Spirit. — HOMILY AGAINST THOSE WHO ARE PRONE TO ANGER