'Horse gate' in the Bible

And they made way for her, and she went through the entrance of the horse-gate into the king's house, and they put her to death there.

From above the horse-gate have the priests strengthened, each over-against his house.

And all the valley of the carcases and of the ashes, And all the fields unto the brook Kidron, Unto the corner of the horse-gate eastward, Are holy to Jehovah, it is not plucked up, Nor is it thrown down any more to the age!