Numbers 31:48-50

Then the men in authority over the thousands of the army, the captains of thousands and captains of hundreds, came to Moses, And said to him, Your servants have taken note of the number of all the fighting-men under our orders, and every one is present; And we have here an offering for the Lord from what every man took in the war, ornaments of gold, leg-chains and arm-rings, finger-rings, ear-rings, and neck-ornaments, to make our souls free from sin before the Lord.