a reviler: a person who verbally abuses and insults others openly, to their face
A reviler is someone whose habit is loud, cutting, insulting speech aimed straight at another person. The word appears only twice in the New Testament, both in Paul's lists of behaviors that mark a person out (1 Corinthians 5:11; 6:10), where it stands without apology beside idol-worship, adultery, theft, and greed. Paul treats abusive speech as a serious sin, not a small one.
The abuse here is done to someone's face, not whispered behind their back. That is why "slanderer" fits the word poorly: in modern English slander suggests secret, false rumor, which is closer to a different word for the backbiter (κατάλαλος). This word is also aimed at people, unlike βλασφημία, which leans toward speech that insults God.
There is an older layer worth knowing. In the Greek Old Testament this word group often translates the Hebrew verb for picking a fight or pressing a quarrel (רִיב), the word behind the place-name Meribah, which means "Quarrel." So the term carries the flavor of contentious, combative disputing, not merely name-calling. Some scholars read Paul's use at Corinth against that community's status-driven lawsuits (1 Corinthians 6:1-8), where believers were dragging one another before the courts.
The opposite of a reviler runs through the New Testament as an ideal. Paul says of himself and his coworkers, "when reviled, we bless" (1 Corinthians 4:12), and 1 Peter holds up Christ, who "when reviled, did not revile in return" (1 Peter 2:23). The reviler does exactly what Christ refused to do under provocation.
Disputed
Whether the word names covert defamation ("slander") or open, face-to-face abusive speech ("reviling").
- majorityOpen, face-to-face abusive speech: "reviler, abusive person." This is the reading of most commentators and modern committee translations (CSB, NASB, NET "verbally abusive").; BDAG, s.v. λοίδορος, λοιδορία; Hans Hanse, 'λοιδορέω κτλ.', TDNT 4:293-294
- minorityA speaker of slander: "slanderer," filed under the domain of speaking evil.; Louw-Nida, Greek-English Lexicon of the NT Based on Semantic Domains, 33.395