Matthew 12:34-36
Ye broods of vipers, how can ye speak good things, yourselves being wicked? 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:
Matthew 23:13
Wo unto you, scribes and Pharisees, hypocrites! because ye shut up the kingdom of heaven from men; for ye yourselves enter not in, and those who were coming in, ye suffer not to enter.
Acts 5:3-4
But Peter said, O Ananias! why hath Satan filled thy heart that thou shouldst lie to the Holy Ghost, and secrete something from the price of the estate?
Acts 8:21-22
There is for thee neither part nor lot in this word: for thy heart is not right before God.
James 1:14-15
but every person is tempted, when by his own peculiar passion he is born away, and ensnared.
James 1:27
Pure religion and undefiled with God even the Father is this, To pay diligent attention to the orphans and widows in their affliction, and to preserve himself spotless from the world.
James 3:5-6
So also the tongue is a little member, and proudly vaunts. Behold how great a pile of wood, a little fire kindleth!