6 At this, the next-of-kin said, "I cannot redeem it for myself without damaging my own inheritance. Take my right of redemption yourself, for I cannot redeem it." 7 Now this was the custom in former times in Israel concerning redeeming and exchanging: to confirm a transaction, the one took off a sandal and gave it to the other; this was the manner of attesting in Israel. 8 So when the next-of-kin said to Boaz, "Acquire it for yourself," he took off his sandal.
Matthew Henry's Commentary on Ruth 4:6-8
Commentary on Ruth 4:1-8
(Read Ruth 4:1-8)
This matter depended on the laws given by Moses about inheritances, and doubtless the whole was settled in the regular and legal manner. This kinsman, when he heard the conditions of the bargain, refused it. In like manner many are shy of the great redemption; they are not willing to espouse religion; they have heard well of it, and have nothing to say against it; they will give it their good word, but they are willing to part with it, and cannot be bound to it, for fear of marring their own inheritance in this world. The right was resigned to Boaz. Fair and open dealing in all matters of contract and trade, is what all must make conscience of, who would approve themselves true Israelites, without guile. Honesty will be found the best policy.