Matthew 12:34-35
Ye broods of vipers, how can ye speak good things, yourselves being wicked? for out of the abundance of the heart the mouth speaketh.
Luke 6:45
A good man, out of the good treasure of his heart, produceth what is good; and a wicked man, from the evil treasure in his heart, produceth that which is evil: for out of the abundance of the heart the mouth speaketh.
Matthew 15:19
for out of the heart proceed wicked reasonings, murders, adulteries, whoredoms, thefts, false testimonies, blasphemies:
Mark 7:21-23
For from within out of the heart of men proceed wicked reasonings, adulteries, whoredoms, murders,
Mark 14:38
Watch ye and pray, that ye enter not into temptation; the spirit indeed is willing, but the flesh is weak.
Hebrews 12:15
carefully observing lest any of you fail of attaining the grace of God; lest any root of bitterness springing up trouble you, and by it many be defiled;
James 1:14-15
but every person is tempted, when by his own peculiar passion he is born away, and ensnared.