Ruth 4:3-8
3 And he said unto the kinsman, Naomi, that is come again out of the country of Moab, selleth a parcel of land, which was our brother Elimelech's:
4 And I thoughta to advertise thee, saying, Buy it before the inhabitants, and before the elders of my people. If thou wilt redeem it, redeem it: but if thou wilt not redeem it, then tell me, that I may know: for there is none to redeem it beside thee; and I am after thee. And he said, I will redeem it.
5 Then said Boaz, What day thou buyest the field of the hand of Naomi, thou must buy it also of Ruth the Moabitess, the wife of the dead, to raise up the name of the dead upon his inheritance.
6 And the kinsman said, I cannot redeem it for myself, lest I mar mine own inheritance: redeem thou my right to thyself; for I cannot redeem it.
7 Now this was the manner in former time in Israel concerning redeeming and concerning changing, for to confirm all things; a man plucked off his shoe, and gave it to his neighbour: and this was a testimony in Israel.
8 Therefore the kinsman said unto Boaz, Buy it for thee. So he drew off his shoe.
Isn’t the arrangement between Boaz and Ruth contrary to the law of the Levirate marriage?
PROBLEM: Deuteronomy 25:5-10 delineates what is known as the law of the levirate marriage. If a man dies and leaves his wife childless, the man’s brother was morally obligated to take his brother’s wife and raise up children in the name of his deceased brother. This practice insured that the brother’s name would not die out. However, Boaz was not the brother of Ruth’s dead husband. Wasn’t this marriage arrangement contrary to the law of the levirate marriage?
SOLUTION: Although it was a more complicated incident, the arrangement between Boaz, Naomi, and Ruth was certainly not contrary to the law of the levirate marriage. The primary concern of the levirate marriage was to perpetuate the family line of the deceased. Certain factors indicate that by the time of Boaz and Ruth, some additional provisions had become customary. First, if there was no surviving brother in the immediate family, then the obligation of the levirate marriage became the responsibility of the nearest surviving male relative. In this case, there was one individual who was nearer to Naomi’s family than Boaz. However, when he declined the invitation, Boaz became the nearest male relative and the next in line to legally fulfill this moral obligation.
Second, along with the responsibility to raise up children in the name of the deceased, there came the responsibility to redeem any property that belonged to the deceased and that had been sold or forfeited (Leviticus 25:25). Because the nearest kinsman was not financially able to assume this responsibility (Ruth 4:6), he relinquished his right and responsibility to redeem Naomi and marry Ruth and passed that obligation on to Boaz. There is nothing in the account of the redemption of Naomi and the marriage of Boaz and Ruth that is contrary to the law of levirate marriage.