James 1:14

That ye put off concerning the former conversation the old man, which is corrupt according to the deceitful lusts;

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

But exhort one another daily, while it is called To day; lest any of you be hardened through the deceitfulness of sin.

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

Was then that which is good made death unto me? God forbid. But sin, that it might appear sin, working death in me by that which is good; that sin by the commandment might become exceeding sinful.

But I say unto you, That whosoever looketh on a woman to lust after her hath committed adultery with her already in his heart.

He feedeth on ashes: a deceived heart hath turned him aside, that he cannot deliver his soul, nor say, Is there not a lie in my right hand?

For sin, taking occasion by the commandment, deceived me, and by it slew me.

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.

If mine heart have been deceived by a woman, or if I have laid wait at my neighbour’s door;

And my heart hath been secretly enticed, or my mouth hath kissed my hand:

These are the things which defile a man: but to eat with unwashen hands defileth not a man.

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.