Deuteronomy 25:7
But if the man like not to take his brother's wife, his brother's wife shall go up to the gate unto the elders, and say, My husband's brother refuseth to raise up unto his brother a name in Israel: he will not perform for me the duty of a husband's brother.
Ruth 4:1-2
And Boaz went up to the gate, and sat down there. And behold, he that had the right of redemption, of whom Boaz had spoken, came by. And he said, Thou, such a one, turn aside, sit down here. And he turned aside and sat down.
Ruth 4:5-6
And Boaz said, On the 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.