'Horse gate' in the Bible

And they laid hands on her, and when she was come out to the entering of the horse gate in the king's house, they slew her there.

But from the Horsegate forth builded the priests, every one over against his house.

and the whole valley of the dead carcasses, and of the ashes, and all the fields unto the brook of Kidron: and from thence unto the corner of the horse gate toward the East, whereas the Sanctuary of the LORD also shall be set. And when it is now builded, and set up of this fashion it shall never be broken, nor cast down anymore."