'Horse' in the Bible

I hearkened and heard, but they spake not aright: no man repenteth him of his wickedness, saying, What have I done? every one turneth to his course, as a horse that rusheth headlong in the battle.

And the whole valley of the dead bodies and of the ashes, and all the fields unto the brook Kidron, unto the corner of the horse gate toward the east, shall be holy unto Jehovah; it shall not be plucked up, nor thrown down any more for ever.

and with thee will I break in pieces the horse and his rider;