'City gate' in the Bible

When it was time to shut the city gate for the night, the men left. I don't know where they were heading. Chase after them quickly, for you have time to catch them!"

So the men pursued them along the road that leads to the fords of the Jordan River. As soon as the search party had left, they shut the city gate after them.

The men of Ai killed about thirty-six of them and chased them from in front of the city gate all the way to the fissures and defeated them on the steep slope. The people's courage melted away like water.

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.

And he shall flee unto one of those cities and stand at the entrance of the city-gate, and shall declare his matter in the ears of the elders of that city; and they shall take him into the city unto them, and give him a place, that he may dwell among them.