'Heart' in the Bible

Blessed are the pure in heart: for they shall see God.

but I say unto you, that every one that looketh on a woman to lust after her hath committed adultery with her already in his heart.

for where thy treasure is, there will thy heart be also.

Take my yoke upon you, and learn of me; for I am meek and lowly in heart: and ye shall find rest unto your souls.

Ye offspring of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.

for as Jonah was three days and three nights in the belly of the whale; so shall the Son of man be three days and three nights in the heart of the earth.

For this people's heart is waxed gross, And their ears are dull of hearing, And their eyes they have closed; Lest haply they should perceive with their eyes, And hear with their ears, And understand with their heart, And should turn again, And I should heal them.

When any one heareth the word of the kingdom, and understandeth it not, then cometh the evil one , and snatcheth away that which hath been sown in his heart. This is he that was sown by the way side.

This people honoreth me with their lips; But their heart is far from me.

But the things which proceed out of the mouth come forth out of the heart; and they defile the man.

For out of the heart come forth evil thoughts, murders, adulteries, fornications, thefts, false witness, railings:

He saith unto them, Moses for your hardness of heart suffered you to put away your wives: but from the beginning it hath not been so.

And he said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind.

But if that evil servant shall say in his heart, My lord tarrieth;