John Gills Exposition of the Bible Commentary - Ruth 4:7
Now this was the manner in former time in Israel concerning redeeming ,.... It is a custom, and not a law, that seems here referred to, when an estate was bought and sold; not the law in Leviticus 25:25 , though that respects the redemption of an estate by a near kinsman, yet no such manner was enjoined as here practised afterwards, made mention of; nor the law in Deuteronomy 25:5 which does not concern the redemption of estates, nor a kinsman's marrying the widow of a deceased kinsman,... read more
Matthew Henry's Complete Commentary - Ruth 4:1-8
Here, 1. Boaz calls a court immediately. It is probable he was himself one of the elders (or aldermen) of the city; for he was a mighty man of wealth. Perhaps he was father of the city, and sat chief; for he seems here to have gone up to the gate as one having authority, and not as a common person; like Job, Job 29:7-25 We cannot suppose him less than a magistrate in his city who was grandson to Nahshon, prince of Judah; and his lying at the end of a heap of corn in the threshing-floor the... read more