21:15 Suppose a man has two wives, one whom he loves more than the other, ¹  and they both ²  bear him sons, with the firstborn being the child of the less loved wife. 21:16 In the day he divides his inheritance ³  he must not appoint as firstborn the son of the favorite wife in place of the other ⁴  wife’s son who is actually the firstborn. 21:17 Rather, he must acknowledge the son of the less loved ⁵  wife as firstborn and give him the double portion ⁶  of all he has, for that son is the beginning of his father’s procreative power ⁷  – to him should go the right of the firstborn.