These conquests of the Israelites doubtless occupied a considerable space of time. Some of them, indeed, were made after the Mosaic age, and were merely extensions of the conquests made at that time. But the overthrow of Og must have followed quickly on that of Sihon. A year or two would have sufficed to allow the Israelitish bands to overrun the districts to the north-east of the Arnon. It is not wonderful that the Moabites should have wished to rid themselves of such dangerous neighbours. But their king, Balak the son of Zippor,[238] was uncertain how to act. The Moabite forces were no match for the fierce desert-tribes who had overthrown Sihon and burnt his towns. An embassy was accordingly sent to the seer, Balaam the son of Beor, who lived at Pethor on the Euphrates, in ‘the land of the children of Ammo.’ The site of Pethor has been recovered from the Assyrian monuments. It lay on the west bank of the Euphrates, a little to the north of its junction with the Sajur, and consequently only a few miles south of the Hittite capital Carchemish, now Jerablûs. The Beni-Ammo must have claimed the same ancestry as the Beni-Ammi or Ammonites, and the name is probably to be found in that of the country of Ammiya or Ammi, which is mentioned in the Tel el-Amarna tablets.[239] The fame of Balaam must have been widespread. But it is permissible to ask whether the only object of the embassy was that the seer should ‘curse’ the descendants of Jacob. A curse usually meant something more substantial than a form of words; and, as we have already seen, the first Edomite king given in the extract from the chronicles of Edom bears the same name and has the same father as Balaam. Did Balaam end by becoming elected king of Edom, and finally falling in battle against the Israelites, along with his allies the Midianitish chiefs?[240] The materials for an answer are not yet before us.