Deuteronomy 25:7
But if the man does not want to marry his brother's widow, then she must go to the elders at the town gate and say, "My husband's brother refuses to preserve his brother's name in Israel; he is unwilling to perform the duty of a brother-in-law to me!"
Ruth 4:1-2
Now Boaz went up to the village gate and sat there. Then along came the guardian whom Boaz had mentioned to Ruth! Boaz said, "Come here and sit down, 'John Doe'!" So he came and sat down.
Ruth 4:5-6
Then Boaz said, "When you acquire the field from Naomi, you must also acquire Ruth the Moabite, the wife of our deceased relative, in order to preserve his family name by raising up a descendant who will inherit his property."