مَلَاخِي 3:3

فَيَجْلِسُ مُمَحِّصًا وَمُنَقِّيًا لِلْفِضَّةِ. فَيُنَقِّي بَنِي لَاوِي وَيُصَفِّيهِمْ كَٱلذَّهَبِ وَٱلْفِضَّةِ، لِيَكُونُوا مُقَرَّبِينَ لِلرَّبِّ، تَقْدِمَةً بِٱلْبِرِّ.

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.