Proverbs 16:28 - A perverse man stirs up strife. A whisperer separates close friends.
Romans 1:29 - being filled with all unrighteousness, sexual immorality, wickedness, covetousness, malice; full of envy, murder, strife, deceit, evil habits, secret slanderers,
2 Corinthians 12:20 - For I am afraid that by any means, when I come, I might find you not the way I want to, and that I might be found by you as you don't desire; that by any means there would be strife, jealousy, outbursts of anger, factions, slander, whisperings, proud thoughts, riots;
2 Chronicles 33:6 - He also made his children to pass through the fire in the valley of the son of Hinnom; and he practiced sorcery, and used enchantments, and practiced sorcery, and dealt with those who had familiar spirits, and with wizards: he worked much evil in the sight of Yahweh, to provoke him to anger.
Proverbs 18:21 - Death and life are in the power of the tongue; those who love it will eat its fruit.