Thematic Bible: Reuben, &c

Now [we come to] the sons of Reuben the firstborn of Israel. For [Reuben] was the eldest, but because he polluted his father's couch [with Bilhah his father's concubine] his birthright was given to the sons of Joseph [favorite] son of Israel; so the genealogy is not to be reckoned according to the birthright. Judah prevailed above his brethren, and from him came the prince and leader [and eventually the Messiah]; yet the birthright was Joseph's.