Malachi 3:3-7

And He will sit as a smelter and purifier of silver, and He will purify the sons of Levi and refine them like gold and silver, so that they may present to the Lord offerings in righteousness.

Then the offering of Judah and Jerusalem will be pleasing to the Lord as in the days of old, and as in former years.

“Then I will come near to you for judgment; and I will be a swift witness against the sorcerers, the adulterers, against those who swear falsely, those who oppress the wage earner in his wages or the widow or the orphan, and those who turn away the stranger from justice and do not fear Me,” says the Lord of armies.

“For I, the Lord, do not change; therefore you, the sons of Jacob, have not come to an end.

“From the days of your fathers you have turned away from My statutes and have not kept them. Return to Me, and I will return to you,” says the Lord of armies. “But you say, ‘How shall we return?’ You Have Robbed God