'Gates' in the Bible

The roads that lead to Zion are in mourning, because no one travels to the festivals. All her gates are desolate; her priests are moaning. Her young women are grieving, and she is bitter.

Jerusalem's gates collapsed to the ground; he destroyed and broke the bars of her gates. Both king and prince have gone into captivity. There is no instruction, and the prophets receive no vision from the LORD.

None of the kings of the earth would have believed, nor the world's inhabitants, that the adversary and the enemy could have breached the gates of Jerusalem.