Bible Verses About Slander: Comes from the evil heart

for out of the heart come forth evil thoughts, murders, adulteries, whoredoms, thefts, false witnessings, evil speakings:

`The good man out of the good treasure of his heart doth bring forth that which is good; and the evil man out of the evil treasure of his heart doth bring forth that which is evil; for out of the abounding of the heart doth his mouth speak.