It is remarkable that Moses begins with Israel's eldest son. By birthright, no doubt, this was his privilege. Yet he had forfeited it. See Genesis 49:3-4. It is hardly possible to consider the family of the Reubenites, taking up their rest on this side Canaan, without finding the soul going forth in prayer to GOD, LORD grant that I may not, like Reuben, sit down short of JESUS'S kingdom! Hebrews 11:14-16.
Related Commentaries of Deuteronomy 33:6
Deuteronomy 33:6
6 Let Reuben live, and not die; and let not his men be few.