Primary Verses:

1. Deuteronomy 21:17

   • "But he shall acknowledge the son of the hated for the firstborn, by giving him a double portion of all that he hath: for he is the beginning of his strength; the right of the firstborn is his."

Supporting Verses:

2. Genesis 15:4

   • "And, behold, the word of YHVH came unto him, saying, This shall not be thine heir; but he that shall come forth out of thine own bowels shall be thine heir."

3. Genesis 25:5-6

   • "And Abraham gave all that he had unto Isaac.  But unto the sons of the concubines, which Abraham had, Abraham gave gifts, and sent them away from Isaac his son, while he yet lived, eastward, unto the east country."

4. 1 Chronicles 5:1

   • "Now the sons of Reuben the firstborn of Israel, (for he was the firstborn; but, forasmuch as he defiled his father's bed, his birthright was given unto the sons of Joseph the son of Israel: and the genealogy is not to be reckoned after the birthright."

5. Matthew 21:37-38

   • "But last of all he sent unto them his son, saying, They will reverence my son.  But when the husbandmen saw the son, they said among themselves, This is the heir; come, let us kill him, and let us seize on his inheritance."