Matthew 12:34-36
Ye brood of vipers, how can ye, being evil, speak good things? For out of the abundance of the heart the mouth speaketh.
Matthew 15:19
For out of the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false witness, railings.
Matthew 23:13
But wo to you, scribes and Pharisees, hypocrites; for ye shut the kingdom of heaven against men: ye go not in, neither suffer ye them that are entring to go in.
Acts 5:3-4
But Peter said, Ananias, why hath Satan filled thy heart, to lie to the Holy Ghost?
Acts 8:21-22
Thou hast neither part nor lot in this matter: for thy heart is not right before God.
James 1:14-15
But every man is tempted, when he is drawn away by his own desire and inticed.
James 1:27
Pure religion and undefiled before God and the Father is this, To visit the fatherless and widows in their affliction, and to keep himself unspoted from the world.
James 3:5-6
So the tongue also is a little member, yet boasteth great things. Behold how much matter a little fire kindleth.