5:12shameful even to speak. Some sins are so despicable that they should be sealed off from direct contact and not even mentioned, much less discussed, except in order to contradict and oppose them. Merely talking about them can be morally and spiritually corruptive. Positive proclamation of the pure truth in the light of the Word exposes all evil (cf. Prov. 6:23; 2 Tim. 3:16).
From NKJV MacArther Study Bible: