Moses
Deuteronomy 33:6ESV·traditional attribution

“Let Reuben live, and not die, but let his men be few.”

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 this is the blessing of Judah,.... Which follows; the same supplement of the words is made in the Targums of Jonathan and Jerusalem; but Aben Ezra thinks it refers to what goes before, that this, the same thing prayed for or prophesied of Reuben, belongs also to Judah, that he should live and not die; it may be in the wars in which that...

Jamieson-Fausset-Brown Reformed @jfbcommentary

Let Reuben live, and not die--Although deprived of the honor and privileges of primogeniture, he was still to hold rank as one of the tribes of Israel. He was more numerous than several other tribes (Num 1:21; Num 2:11). Yet gradually he sank into a mere nomadic tribe, which had enough to do merely "to live and not die." Many eminent biblical scholars, resting on...