Deuteronomy 33:8-11

8-11. Of Levi he said This is also addressed to Jehovah as a prayer.

“Thy Thummim and thy Urim,

Thy right and thy light.”

For Thummim and Urim see what is said in Exodus 28:30, and Leviticus 8:8.

Thy holy one Moses and Aaron were the noblest members of the tribe of Levi. With almost unwavering steadfastness they had served Jehovah through the wilderness wandering. Aaron, as high priest, is referred to as the holy one. In Psalms 106:16, he is called Jehovah’s holy one. Although Aaron is no longer living when Moses pronounces the benediction on the tribes, he may be considered as the representative of the high priesthood. And in one sense he may be deemed the representative of the tribe.

Massah Comp. Exodus 17:1-7.

Meribah Comp. Numbers 20:1-13. The reference to these two places favours the idea that a real person is referred to in the expression thy holy one, namely, Jehovah.