Misinterpretations often wrongly suggest this law allows a father to favor the son of his preferred wife by overriding birthright, when it actually mandates protection of the firstborn's double share irrespective of maternal status; others mistakenly apply it to endorse polygamy without consequence or extract modern egalitarian principles, ignoring its ancient Near Eastern context of inheritance customs and its role in preventing discord within polygamous households under Israel's covenant framework.
Deuteronomy 21:17
King James Version (1769)
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.
This passage articulates the Mosaic law requiring a father to grant a double portion of his inheritance to his true firstborn son, even if the child is born to the less favored wife, thereby upholding the sacred rights of primogeniture based on birth order rather than paternal affection. The expression 'the beginning of his strength' poetically affirms the firstborn's preeminence as the initial fruit of the father's procreative power, ensuring familial stability and reflecting God's value on covenantal order over human bias.