And thou shalt remember all the way which the LORD thy God hath led thee these forty years in the wilderness, to humble thee, and to prove thee, to know what was in thy heart, whether thou wouldst keep his commandments, or not.

Let me be weighed in an even balance, that God may know my integrity.

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

And I will bring the third part through the fire, and will refine them as silver is refined, and will try them as gold is tried: they shall call on my name, and I will hear them: I will say, It is my people; and they shall say, The LORD is my God.

But who may abide the day of his coming? and who shall stand when he appeareth? for he is like a refiner's fire, and like fuller's soap.

That the trial of your faith, being much more precious than of gold that perisheth, though tried with fire, might be found to praise, and honor, and glory, at the appearing of Jesus Christ:

General references

For his eyes are upon the ways of man, and he seeth all his goings.

Examine me, O LORD, and prove me; try my reins and my heart.