Bible Verses About Birthright: Forfeited by Reuben

The sons of Re'uven the firstborn of Isra'el - he was the firstborn, but because he defiled his father's bed, his birthright was given to the sons of Yosef the son of Isra'el, though not in such a way as for him to be regarded in the genealogy as the firstborn.

For Y'hudah became greater than his brothers, inasmuch as the ruler came from him; nevertheless, the birthright went to Yosef.