Unless stated otherwise, my source for hymn texts and tunes is The Lutheran Service Book.
Monday, August 5, 2019
Messiah: No. 7 And he shall purify the sons of Levi
The text is from Malachi 3:3: "He will sit as a refiner and purifier of silver, and he will purify the sons of Levi and refine them like gold and silver, and they will bring offerings in righteousness to the LORD."