1 Samuel 16:7

Judge not according to the appearance, but judge righteous judgment.

I the LORD search the heart, I try the reins, even to give every man according to his ways, and according to the fruit of his doings.

And he said unto them, Ye are they which justify yourselves before men; but God knoweth your hearts: for that which is highly esteemed among men is abomination in the sight of God.

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.

For my thoughts are not your thoughts, neither are your ways my ways, saith the LORD. For as the heavens are higher than the earth, so are my ways higher than your ways, and my thoughts than your thoughts.

Then hear thou in heaven thy dwelling place, and forgive, and do, and give to every man according to his ways, whose heart thou knowest; (for thou, even thou only, knowest the hearts of all the children of men;)

All the ways of a man are clean in his own eyes; but the LORD weigheth the spirits.

But let it be the hidden man of the heart, in that which is not corruptible, even the ornament of a meek and quiet spirit, which is in the sight of God of great price.

He delighteth not in the strength of the horse: he taketh not pleasure in the legs of a man. The LORD taketh pleasure in them that fear him, in those that hope in his mercy.

Favour is deceitful, and beauty is vain: but a woman that feareth the LORD, she shall be praised.

To whom coming, as unto a living stone, disallowed indeed of men, but chosen of God, and precious,

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.