Matthew 12:34-36
You brood of vipers! how can you, evil as you are, say anything good? For what fills the heart will rise to the lips.
Matthew 15:19
For out of the heart proceed evil thoughts--murder, adultery, unchastity, theft, perjury, slander.
Matthew 23:13
But alas for you, Teachers of the Law and Pharisees, hypocrites that you are! You turn the key of the Kingdom of Heaven in men's faces. For you do not go in yourselves, nor yet allow those who try to go in to do so.
Acts 5:3-4
"Ananias," Peter exclaimed, "how is it that Satan has so taken possession of your heart that you have lied to the Holy Spirit, and kept back a part of the money paid for the land?
Acts 8:21-22
You have no share or part in our Message, for your 'heart is not right with God.'
James 1:14-15
A man is in every case tempted by his own passions--allured and enticed by them.
James 1:27
That religious observance which is pure and spotless in the eyes of God our Father is this--to visit orphans and widows in their trouble, and to keep oneself uncontaminated by the world.
James 3:5-6
So is it with the tongue. Small as it is, it is a great boaster. Think how tiny a spark may set the largest forest ablaze!