'City Gate' in the Bible

He hung the body of the king of Ai on a tree until evening, and at sunset Joshua commanded that they take his body down from the tree. They threw it down at the entrance of the city gate and put a large pile of rocks over it, which remains to this day.

When someone flees to one of these cities, stands at the entrance of the city gate, and states his case before the elders of that city, they are to bring him into the city and give him a place to live among them.