Gregory the Great
Patristic
c. A.D. 540–604
“It is therefore to be well weighed, when there is rest from chiding, how culpably peace is kept with the worst of men, if so great a prophet offered this as a sacrifice to God, that he excited the enmities of the wicked against himself for the Lord. Hence it is that the tribe of Levi, when they took their swords and passed through the midst of the camp because they would not spare the sinners who were to be smitten, are said to have consecrated their hands to God. Hence Phinehas, spurning the favour of his fellow-countrymen when they sinned, smote those who came together with the Midianites, and in his wrath appeased the wrath of God.”