Jeremiah 17:9

The heart is deceitful above all things, and it is exceedingly corrupt: who can know it?

Ecclesiastes 9:3

This is an evil in all that is done under the sun, that there is one event unto all: yea also, the heart of the sons of men is full of evil, and madness is in their heart while they live, and after that they go to the dead.

Mark 7:21-22

For from within, out of the heart of men, evil thoughts proceed, fornications, thefts, murders, adulteries,

Genesis 8:21

And Jehovah smelled the sweet savor; and Jehovah said in his heart, I will not again curse the ground any more for man's sake, for that the imagination of man's heart is evil from his youth; neither will I again smite any more everything living, as I have done.

Psalm 51:5

Behold, I was brought forth in iniquity; And in sin did my mother conceive me.

Jeremiah 16:12

and ye have done evil more than your fathers; for, behold, ye walk every one after the stubbornness of his evil heart, so that ye hearken not unto me:

Genesis 6:5

And Jehovah saw that the wickedness of man was great in the earth, and that every imagination of the thoughts of his heart was only evil continually.

Job 15:14-16

What is man, that he should be clean? And he that is born of a woman, that he should be righteous?

Psalm 53:1-3

The fool hath said in his heart, There is no God. Corrupt are they, and have done abominable iniquity; There is none that doeth good.

Proverbs 28:26

He that trusteth in his own heart is a fool; But whoso walketh wisely, he shall be delivered.

Matthew 13:15

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.

Matthew 15:19

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

James 1:14-15

but each man is tempted, when he is drawn away by his own lust, and enticed.

Hebrews 3:12

Take heed, brethren, lest haply there shall be in any one of you an evil heart of unbelief, in falling away from the living God:

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American Standard Version Public Domain