A crucible for silver and a furnace for gold, but the LORD is the tester of hearts.

1 Chronicles 29:17
I know, my God, that You test the heart and delight in uprightness. All these things I have given willingly and with an upright heart, and now I have seen Your people who are present here giving joyfully and willingly to You.

Psalm 26:2
Test me, O LORD, and try me; examine my heart and mind.

Psalm 139:23
Search me, O God, and know my heart; test me and know my concerns.

Proverbs 15:11
Sheol and Abaddon lie open before the LORD--how much more the hearts of men!

Proverbs 17:2
A wise servant will rule over a disgraceful son and share his inheritance as one of the brothers.

Proverbs 27:21
A crucible for silver and a furnace for gold, but a man is tested by the praise accorded him.

Jeremiah 17:10
I, the LORD, search the heart; I examine the mind to reward a man according to his way, by what his deeds deserve.

Ezekiel 22:18
"Son of man, the house of Israel has become dross to Me. All of them are copper, tin, iron, and lead inside the furnace; they are but the dross of silver.

Daniel 11:35
Some of the wise will fall, so that they may be refined, purified, and made spotless until the time of the end, for it will still come at the appointed time.

Malachi 3:3
And He will sit as a refiner and purifier of silver; He will purify the sons of Levi and refine them like gold and silver. Then they will present offerings to the LORD in righteousness.

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