Deuteronomy 21:17

15 If a man have two wives, one beloved, and another hated, and they have born him children, both the beloved and the hated; and if the firstborn son be hers that was hated:

16 Then it shall be, when he maketh his sons to inherit that which he hath, that he may not make the son of the beloved firstborn before the son of the hated, which is indeed the firstborn:

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.

18 If a man have a stubborn and rebellious son, which will not obey the voice of his father, or the voice of his mother, and that, when they have chastened him, will not hearken unto them:

19 Then shall his father and his mother lay hold on him, and bring him out unto the elders of his city, and unto the gate of his place;

This was said to Israel at a particular time, so it is wise to read it together with the surrounding text. Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
Instead, he must acknowledge the firstborn, the son of his unloved wife, by giving him a double portion of all that he has. For that son is the firstfruits of his father’s strength; the right of the firstborn belongs to him.
KJV
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.
WEB
but he shall acknowledge the firstborn, the son of the hated, by giving him a double portion of all that he has; for he is the beginning of his strength. The right of the firstborn is his.
ASV
but he shall acknowledge the first-born, the son of the hated, by giving him a double portion of all that he hath; for he is the beginning of his strength; the right of the first-born is his.
DARBY
but he shall acknowledge as firstborn the son of the hated, by giving him a double portion of all that is found with him; for he is the firstfruits of his vigour: the right of the firstborn is his.
BLB
But the firstborn son of the hated wife he shall acknowledge by giving him a double portion of all that is found to him, for he [is] the beginning of his strength; to him [is] the right of the firstborn.
ÅB
Men han skal kjennes ved den førstefødte, sønnen til den han ikke synes om, og gi ham en dobbelt del av alt det han eier; for han er den første frukt av hans kraft, ham hører førstefødselsretten til.
OTB
Han må anerkjenne den førstefødte, sønnen av den ikke elskede kona, ved å gi ham en dobbelt del av alt han har, for han er det første tegnet på sin fars styrke. Førstefødselsretten tilhører ham.
B1930
Men han skal kjennes ved den førstefødte, sønnen til den han ikke synes om, og gi ham en dobbelt del av alt det han eier; for han er den første frukt av hans kraft, ham hører førstefødselsretten til.

Study notes (Tyndale)

Original text and word study

Cross references