עֵ֣ד בְּ֭לִיַּעַל יָלִ֣יץ מִשְׁפָּ֑ט וּפִ֥י רְ֝שָׁעִ֗ים יְבַלַּע־אָֽוֶן׃
An ungodly witness mocketh at right; And the mouth of the wicked devoureth iniquity.
Rashi on Proverbs
A godless witness testifies judgment He testifies against a man [with] the rhetoric of the judgments of tortures and death.
Rashi on Proverbs
but violence will devour the mouth of the wicked The violence will swallow him up.