'Gates' in the Bible

The ways of Zion do mourn, because none come to the solemn feasts: all her gates are desolate: her priests sigh, her virgins are afflicted, and she is in bitterness.

Her gates are sunk into the ground; he hath destroyed and broken her bars: her king and her princes are among the Gentiles: the law is no more; her prophets also find no vision from the LORD.

The kings of the earth, and all the inhabitants of the world, would not have believed that the adversary and the enemy should have entered into the gates of Jerusalem.