That also was taken for a land of Giants - and Giants dwelt therein in old time, and the Ammonites called them Zamzummims:

a people that was great, many and tall, as the Anakims. But the LORD destroyed them before the Ammonites, and they cast them out and they dwelt there in their stead:

The Ammonites and the Moabites shall not come into the congregation of the LORD; no, not in the tenth generation, no they shall never come in to the congregation of the LORD,