Bible Verses About Reuben: Commits incest with one of his father's concubines, and, in consequence, forfeits the birthright

While Israel lived in that land, Reuben went and lay with Bilhah, his father’s concubine, and Israel heard of it. Now the sons of Jacob were twelve.

Boiling over like water, you shall not excel; because you went up to your father’s bed, then defiled it. He went up to my couch.

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.