5 You have a spiritual nature; the soul is the image of the Creator; honour the image of God, by being in agreement with all men. Remember death, and be not angry, that your peace be not of constraint. As long as your life remains to you, cleanse your soul from wrath; for if it should go to Sheol with you, your road will be straight to Gehenna. Keep not anger in your heart; hold not fury in your soul; you have not power over your soul, save to do that which is good. You are bought with the blood of God; you are redeemed by the passion of Christ; for your sake He suffered death, that you might die to your sins. His face endured spitting, that you might not shrink from scorn. Vinegar and gall did He drink, that you might be set apart from wrath. He received stripes on His body, that you might not fear suffering. If you are in truth His servant, fear your holy Lord; if you are His true disciple, walk in your Master's footsteps. Endure scorn from your brother, that you may be the companion of Christ. Display not anger against man, that you be not set apart from your Redeemer.
Source: On Admonition and Repentance (New Advent)