Deuteronomy 33:8, 10
Deuteronomy 33:8 ESV
And of Levi he said, “Give to Levi your Thummim, and your Urim to your godly one, whom you tested at Massah, with whom you quarreled at the waters of Meribah
Deuteronomy 33:10 ESV
They shall teach Jacob your rules and Israel your law; they shall put incense before you and whole burnt offerings on your altar.