Verses with the word prove in the Old Testament (16 verses):

Exodus 16:4
Then said the LORD unto Moses, Behold, I will rain bread from heaven for you; and the people shall go out and gather a certain rate every day, that I may prove them, whether they will walk in my law, or no.

Exodus 20:20
And Moses said unto the people, Fear not: for God is come to prove you, and that his fear may be before your faces, that ye sin not.

Deuteronomy 8:2
And thou shalt remember all the way which the LORD thy God led thee these forty years in the wilderness, to humble thee, and to prove thee, to know what was in thine heart, whether thou wouldest keep his commandments, or no.

Deuteronomy 8:16
Who fed thee in the wilderness with manna, which thy fathers knew not, that he might humble thee, and that he might prove thee, to do thee good at thy latter end;

Deuteronomy 33:8
And of Levi he said, Let thy Thummim and thy Urim be with thy holy one, whom thou didst prove at Massah, and with whom thou didst strive at the waters of Meribah;

Judges 2:22
That through them I may prove Israel, whether they will keep the way of the LORD to walk therein, as their fathers did keep it, or not.

Judges 3:1
Now these are the nations which the LORD left, to prove Israel by them, even as many of Israel as had not known all the wars of Canaan;

Judges 3:4
And they were to prove Israel by them, to know whether they would hearken unto the commandments of the LORD, which he commanded their fathers by the hand of Moses.

Judges 6:39
And Gideon said unto God, Let not thine anger be hot against me, and I will speak but this once: let me prove, I pray thee, but this once with the fleece; let it now be dry only upon the fleece, and upon all the ground let there be dew.

1 Kings 10:1
And when the queen of Sheba heard of the fame of Solomon concerning the name of the LORD, she came to prove him with hard questions.

2 Chronicles 9:1
And when the queen of Sheba heard of the fame of Solomon, she came to prove Solomon with hard questions at Jerusalem, with a very great company, and camels that bare spices, and gold in abundance, and precious stones: and when she was come to Solomon, she communed with him of all that was in her heart.

Job 9:20
If I justify myself, mine own mouth shall condemn me: if I say, I am perfect, it shall also prove me perverse.

Psalms 26:2
Examine me, O LORD, and prove me; try my reins and my heart.

Ecclesiastes 2:1
I said in mine heart, Go to now, I will prove thee with mirth, therefore enjoy pleasure: and, behold, this also is vanity.

Daniel 1:12
Prove thy servants, I beseech thee, ten days; and let them give us pulse to eat, and water to drink.

Malachi 3:10
Bring ye all the tithes into the storehouse, that there may be meat in mine house, and prove me now herewith, saith the LORD of hosts, if I will not open you the windows of heaven, and pour you out a blessing, that there shall not be room enough to receive it.