We are meditating on the types of speech that the Bible warns against. Here are some additional words that believers should not speak.
Backbiting words: He that backbiteth not with his tongue... (Psalms 15:3)
Words of discord:...he that soweth discord among brethren. (Proverbs 6:19)
Contentious words: A fool's lips enter into contention, and his mouth calleth for strokes (Proverbs 18:6)
Words of strife: Thou shalt hide them in the secret of thy presence from the pride of man: thou shalt keep them secretly in a pavilion from the strife of tongues. (Psalms 31:20)
Devouring and deceitful words: Thou lovest all devouring words, O thou deceitful tongue. (Psalms 52:4)
Froward and perverse words: Put away from thee a froward mouth and perverse lips put far from thee. (Proverbs 4:24)
Mischievous words: They also that seek after my life lay snares for me: and they that seek my hurt speak mischievous things, and imagine deceits all the day long. (Psalms 38:12)
Tale bearing words: A talebearer revealeth secrets; but he that is of a faithful spirit concealeth the matter. (Proverbs 11:13)
Filthy words: But now ye also put off all these; anger, wrath, malice, blasphemy, filthy communication out of your mouth. (Colossians 3:8)