John Chrysostom
Catena Aurea · Lukasevangelium 18
And he spake this parable unto certain which trusted in themselves that they were righteous, and despised others: Two men went up into the temple to pray; the one a Pharisee, and the other a Publican. The Pharisee stood and prayed thus with himself, God, I thank thee, that I am not as other men are, extortioners, unjust, adulterers, or even as this Publican. I fast twice in the week, I give tithes of all that I possess. And the Publican, standing afar off, would not lift up so much as his eyes unto heaven, but smote upon his breast, saying, God be merciful to me a sinner. I tell you, this man went down to his house justified rather than the other: for every one that exalteth himself shall be abased; and he that humbleth himself shall be exalted.
He who rails at others does much harm both to himself and others. First, those who hear him are rendered worse, for if sinners they are made glad in finding one as guilty as themselves, if righteous, they are exalted, being led by the sins of others to think more highly of themselves. Secondly, the body of the Church suffers; for those who hear him are not all content to blame the guilty only, but to fasten the reproach also on the Christian religion. Thirdly, the glory of God is evil spoken of; for as our well-doing makes the name of God to be glorified, so our sins cause it to be blasphemed. Fourthly, the object of reproach is confounded and becomes more reckless and immoveable. Fifthly, the ruler is himself made liable to punishment for uttering things which are not seemly.