NET

16 In the day he divides his inheritance he must not appoint as firstborn the son of the favorite wife in place of the other wife’s son who is actually the firstborn.

Darby

16 then it shall be, in the day that he maketh his sons to inherit what he hath, that he may not make the son of the beloved firstborn before the son of the hated, who is the firstborn;

KJV

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:

Strong's

16 Then it shall be, when^H3117 he maketh his sons^H1121 to inherit^H5157 that which he hath, that he may^H3201 not make the son^H1121 of the beloved^H157 firstborn^H1069 before^H6440 the son^H1121 of the hated^H8130, which is is indeed the firstborn^H1060: