Matthew 15:19

The heart is deceitful above all things, and desperately wicked: who can know it?

Keep thy heart with all diligence; for out of it are the issues of life.

And God 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.

O Jerusalem, wash thine heart from wickedness, that thou mayest be saved. How long shall thy vain thoughts lodge within thee?

Their feet run to evil, and they make haste to shed innocent blood: their thoughts are thoughts of iniquity; wasting and destruction are in their paths.

I hate vain thoughts: but thy law do I love.

Repent therefore of this thy wickedness, and pray God, if perhaps the thought of thine heart may be forgiven thee.

Let the wicked forsake his way, and the unrighteous man his thoughts: and let him return unto the LORD, and he will have mercy upon him; and to our God, for he will abundantly pardon.

Frowardness is in his heart, he deviseth mischief continually; he soweth discord.

And Jesus knowing their thoughts said, Wherefore think ye evil in your hearts?

And the LORD smelled a sweet savour; and the LORD said in his heart, I will not again curse the ground any more for man’s sake; for the imagination of man’s heart is evil from his youth; neither will I again smite any more every thing living, as I have done.

For I know that in me (that is, in my flesh,) dwelleth no good thing: for to will is present with me; but how to perform that which is good I find not.

The thought of foolishness is sin: and the scorner is an abomination to men.

Foolishness is bound in the heart of a child; but the rod of correction shall drive it far from him.