Malachi 3:3

Verse Malachi 3:3. He shall sit as a refiner] Alluding to the case of a refiner of metals, sitting at his fire; increasing it when he sees necessary, and watching the process of his work.

The sons of Levi] Those who minister in their stead under the NEW covenant, for the OLD Levitical institutions shall be abolished; yet, under the preaching of our Lord, a great number of the priests became obedient to the faith, Acts 6:7; and, as to the others that did not believe, this great Refiner threw them as dross into the Roman fire, that consumed both Jerusalem and the temple.