Proverbs 16:27 in the King James Version
An ungodly man diggeth up evil: and in his lips there is as a burning fire.
Context
26 The appetite of the laboring man labors for him, for his mouth urges him on.
27 A worthless man devises mischief. His speech is like a scorching fire.
28 A perverse man stirs up strife. A whisperer separates close friends.