Moses
Deuteronomy 33:7ESV·traditional attribution

And this he said of Judah: “Hear, O LORD, the voice of Judah, and bring him in to his people. With your hands contend for him, and be a help against his adversaries.”

John Calvin Reformed @genevareformer

7. And this is the blessing of Judah. And this also of Judah. Jerome has faithfully given the sense, “This is the blessing,” although it is not actually expressed. It might at first sight appear inconsistent that some abatement should be made from the splendid and abundant blessings which had been promised to the tribe of Judah.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. The blessing of Reuben. Though Reuben had lost the honour of his birthright, yet Moses begins with him; for we should not insult over those that are disgraced, nor desire to perpetuate marks of infamy upon any, though ever so justly fastened at first, Deu 33:6. Moses desires and foretels, 1. The preserving of this tribe.

Commenting on Deuteronomy 33:6-7

John Gill Reformed Baptist @doctorgill

And of Levi he said,.... That is, Moses said of the tribe of Levi, as both the Targums of Jonathan and Jerusalem: let thy Thummim and thy Urim be with thy Holy One; with Aaron, as the same Targums interpret it, who was of the tribe of Levi, and was a holy good man, a saint of the Lord, as he is called, Psa 106:16...