Deuteronomy
Chapter
Deuteronomy is a sequel to Numbers. Narrated in it are three speeches and two poems, spoken by Moses in Moab before the crossing of Jordan, in which he gives the Ten Commandments to the chosen people. A minor narrative in three of the chapters tells of the last days of Moses.
Deuteronomy 21
21:16 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: