Augustine of Hippo
Thus, if any of you have harbored anger in your hearts in a most disgraceful way up until these sacred days, let it be cast away from this point forward so that your prayers may be heard with purity. Ensure that there is no sin or irritation in your hearts, and let your conscience not restrain you when you utter the words: And forgive us our debts, as we forgive our debtors (Matthew 6:12).