'Brook' in the Bible

Why is my pain perpetual, and my wound incurable, which refuseth to be healed? wilt thou indeed be unto me as a deceitful brook , as waters that fail?

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.