1 Chronicles 5:1

1. Now the sons of Reuben—In proceeding to give this genealogy, the sacred historian states, in a parenthesis (1 Chronicles 5:1; 1 Chronicles 5:2), the reason why it was not placed first, as Reuben was the oldest son of Jacob. The birthright, which by a foul crime he had forfeited, implied not only dominion, but a double portion (1 Chronicles 5:2- :); and both of these were transferred to Joseph, whose two sons having been adopted as the children of Jacob (1 Chronicles 5:2- :), received each an allotted portion, as forming two distinct tribes in Israel. Joseph then was entitled to the precedency; and yet, as his posterity was not mentioned first, the sacred historian judged it necessary to explain that "the genealogy was not to be reckoned after the birthright," but with a reference to a superior honor and privilege that had been conferred on Judah—not the man, but the tribe, whereby it was invested with the pre-eminence over all the other tribes, and out of it was to spring David with his royal lineage, and especially the great Messiah (1 Chronicles 5:2- :). These were the two reasons why, in the order of enumeration, the genealogy of Judah is introduced before that of Reuben.