Jeremiah 17:10

But the LORD said unto Samuel, Look not on his countenance, or on the height of his stature; because I have refused him: for the LORD seeth not as man seeth; for man looketh on the outward appearance, but the LORD looketh on the heart.

And he that searcheth the hearts knoweth what is the mind of the Spirit, because he maketh intercession for the saints according to the will of God.

But, O LORD of hosts, that judgest righteously, that triest the reins and the heart, let me see thy vengeance on them: for unto thee have I revealed my cause.

And I will kill her children with death; and all the churches shall know that I am he which searcheth the reins and hearts: and I will give unto every one of you according to your works.

Great in counsel, and mighty in work: for thine eyes are open upon all the ways of the sons of men: to give every one according to his ways, and according to the fruit of his doings:

But, O LORD of hosts, that triest the righteous, and seest the reins and the heart, let me see thy vengeance on them: for unto thee have I opened my cause.

And thou, Solomon my son, know thou the God of thy father, and serve him with a perfect heart and with a willing mind: for the LORD searcheth all hearts, and understandeth all the imaginations of the thoughts: if thou seek him, he will be found of thee; but if thou forsake him, he will cast thee off for ever.

And, behold, I come quickly; and my reward is with me, to give every man according as his work shall be.

The fining pot is for silver, and the furnace for gold: but the LORD trieth the hearts.

Also unto thee, O Lord, belongeth mercy: for thou renderest to every man according to his work.

For the Son of man shall come in the glory of his Father with his angels; and then he shall reward every man according to his works.

Then hear thou from heaven thy dwelling place, and forgive, and render unto every man according unto all his ways, whose heart thou knowest; (for thou only knowest the hearts of the children of men:)

And I saw the dead, small and great, stand before God; and the books were opened: and another book was opened, which is the book of life: and the dead were judged out of those things which were written in the books, according to their works.

Oh let the wickedness of the wicked come to an end; but establish the just: for the righteous God trieth the hearts and reins.

And needed not that any should testify of man: for he knew what was in man.

But I will punish you according to the fruit of your doings, saith the LORD: and I will kindle a fire in the forest thereof, and it shall devour all things round about it.

I know also, my God, that thou triest the heart, and hast pleasure in uprightness. As for me, in the uprightness of mine heart I have willingly offered all these things: and now have I seen with joy thy people, which are present here, to offer willingly unto thee.

What fruit had ye then in those things whereof ye are now ashamed? for the end of those things is death.

Notwithstanding the land shall be desolate because of them that dwell therein, for the fruit of their doings.