INTRODUCTION TO DEUTERONOMY 21 This chapter treats of the beheading of the heifer, for the expiation of unknown murder, and the rules to be observed in it, Deu 21:1 of a beautiful captive woman an Israelite is desirous of having for his wife, and what methods he must take to accomplish it, Deu 21:10, of giving the double portion to the firstborn, which he must not be deprived of in favour of the son of a beloved wife, Deu 21:15 and of the stubborn and rebellious son, who remaining so must be put to death, Deu 21:18 and of burying a person hanged on a tree the same day he is executed, Deu 21:22.