'Water gate' in the Bible

Moreover the Nethinim dwelling in Ophel, repaired unto the place opposite the water gate toward the east, and the tower that projects out.

And all the people gathered themselves together as one man into the street that was before the water gate; and they spoke unto Ezra the scribe to bring the book of the law of Moses, which the LORD had commanded to Israel.

And he read in it facing the square that was before the water gate from the morning until midday, before the men and the women, and those that could understand; and the ears of all the people were attentive unto the book of the law.

So the people went forth, and brought them, and made themselves booths, every one upon the roof of his house, and in their courts, and in the courts of the house of God, and in the square at the water gate, and in the square at the gate of Ephraim.

And at the fountain gate, which was opposite them, they went up by the stairs of the city of David, at the ascent of the wall, above the house of David, even unto the water gate eastward.