'Gates' in the Bible

And the men of Israel and of Judah arose, and shouted, and pursued the Philistines, until thou comest to the ravine and to the gates of Ekron. And the wounded of the Philistines fell down on the way to Shaaraim, even to Gath, and to Ekron.

And it was told Saul that David had come to Keilah. Then Saul said, God has cast him off into my hand; for he is shut in, by entering into a city that has gates and bars.