Bible Search Cross Reference 1 Chronicles 5:1. Now the sons of Reuben the first-born of Israel, (for he was the first-born; but, forasmuch as he defiled his father's bed, his birth-right was given to the sons of Joseph the son of Israel: and the genealogy is not to be reckoned after the birth-right.


http://qbible.com/references/1-chronicles/5-1.html