He will sit as a refiner and purifier of silver; he will purify the Levites and refine them like gold and silver. Then the LORD will have men who will bring offerings in righteousness
NIV
He will sit as a refiner and purifier of silver, and He will purify the priests, the sons of Levi, and refine them like gold and silver, that they may offer to the Lord offerings in righteousness.
AMP
And he shall sit as a refiner and purifier of silver: and he shall purify the sons of Levi, and purge them as gold and silver, that they may offer unto the LORD an offering in righteousness.
KJV
