For out of the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false witness, blasphemies.
Matthew 15:19
Surrounding context
15:18 But those things which proceed out of the mouth come from the heart, and they defile a man.
15:19 For out of the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false witness, blasphemies.
15:20 These are the things which defile a man, but to eat with unwashed hands does not defile a man."