Psalms 50:20

But you suffered wrong at his hands: why, then, do wrong to yourself? Those who take revenge, after all, strike themselves with a sword. I mean, if you want to do yourself a favor and have revenge on him, speak well of the wrongdoer; in this way you will turn many people into accusers in your place and earn yourself a great reward, whereas if you speak ill of him, you will not be believed, being suspected of bias. And so the results of your exertion go in the opposite direction: whereas you are anxious to undermine his reputation, the opposite happens; it is by commendation, not accusation, that this happens, you see. You bring yourself into disrepute, while your shafts in his direction are wide of the mark. Bias in fact is the impression on the mind of the listeners, not allowing your words to gain entry to their ears. The same thing happens as in judicial objections: when someone raises an objection to evidence in court, the whole process is put on hold. Exactly so, in this instance, suspicion of bias prevents the case becoming admissible. Do not speak ill, accordingly, in case the black mark attaches to you, and instead of preparing mud with clay and bricks, you weave for him wreaths from roses, violets and other flowers. And do not bear dung in your mouth, like beetles (this is what slanderers do, you know: they are the first to be affected by the stench), but bear flowers, like the bees, and make honeycombs like them, and be gentle to everybody. Everyone feels revulsion for slanderers like a bad smell, as if they were some bloodsucker, fed on others' problems like a beetle on dung; with the person bearing a word of commendation, on the other hand, everyone associates like a member of their own body, their own brother, their son, their father.

"Sitting against thy brother thou didst detract" (ver. 20). And this "sitting" doth belong to that whereof he hath spoken above in, "hath embraced." For he that doeth anything while standing or passing along, doth it not with pleasure: but if he for this purpose sitteth, how much leisure doth he seek out to do it! That very evil detraction thou wast making with diligence, thou wast making sitting; thou wouldest thereon be wholly engaged; thou wast embracing thy evil, thou wast kissing thy craftiness. "And against thy mother's son thou didst lay a stumbling-block." Who is "mother's son"? Is it not brother? He would repeat then the same that he had said above, "thy brother." Hath he intimated that any distinction must be perceived by us? Evidently, brethren, I think a distinction must be made. Brother against brother doth detract, for example's sake, as though for instance one strong, and now a doctor and scholar of some weight, doth detract from his brother, one perchance that is teaching well and walking well: but another is weak, against him he layeth a stumbling-block by detracting from the former. For when the good are detracted from by those that seem to be of some weight and to be learned, the weak fall upon the stumbling-block, who as yet know not how to judge. Therefore this weak one is called "mother's son," not yet father's, still needing milk, and hanging on the breast. He is borne as yet in the bosom of his mother the Church, he is not strong enough to draw near to the solid food of his Father's table, but from the mother's breast he draweth sustenance, unskilled in judging, inasmuch as yet he is animal and carnal. "For the spiritual man judgeth all things," but "the animal man perceiveth not those things which are of the Spirit of God; for they are foolishness to him." To such men saith the Apostle, "I could not speak unto you as unto spiritual, but as unto carnal, as to babes in Christ I gave you milk to drink, not meat; for ye were not able, but not even now are ye able." A mother I have been to you: as is said in another place, "I became a babe among you, even as a nurse cherishing her own children." Not a nurse nursing children of others, but a nurse cherishing her own children. For there are mothers who when they have borne give to nurses: they that have borne cherish not their children, because they have given them to be nursed; but those…