Proverbs 19:28

26 He who assaults his father or evicts his mother is a son who brings shame and disgrace.

27 If you cease to hear instruction, my son, you will stray from the words of knowledge.

A corrupt witness mocks justice, and a wicked mouth swallows iniquity.

29 Judgments are prepared for mockers, and beatings for the backs of fools.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
A corrupt witness mocks justice, and a wicked mouth swallows iniquity.
KJV
An ungodly witness scorneth judgment: and the mouth of the wicked devoureth iniquity.
WEB
A corrupt witness mocks justice, and the mouth of the wicked gulps down iniquity.
ASV
A worthless witness mocketh at justice; And the mouth of the wicked swalloweth iniquity.
DARBY
A witness of Belial scorneth judgment, and the mouth of the wicked swalloweth down iniquity.
BLB
A witness of worthlessness scorns justice, and the mouth of wicked ones swallows iniquity.
ÅB
Et ugudelig vitne spotter det som rett er, og de gudløses munn sluker urett.
OTB
Et verdiløst vitne spotter rettferdighet, og den ondes munn sluker urett.
B1930
Et ugudelig vidne spotter det som rett er, og de gudløses munn sluker urett.

Study notes (Tyndale)

Original text and word study

Cross references