The sons of Reuben the firstborn of Israel (for he was the firstborn; but, because he defiled his father's couch, his birthright was given to the sons of Joseph the son of Israel; and the genealogy is not to be reckoned after the birthright.
And so, they were the first to fall. Those tribes that settled on the east bank of the Jordan River. And the reason for their fall is their transgression against the God of their fathers and their beginning to worship other gods. "