The other tribes were prepared to effect an entrance into the country by following a circuitous route on the eastern side. This expedition might have been shortened if the Idumeans, who dwelt on the mountain ranges of Seir, had permitted the Israelites to pass through their territory. Apparently the Idumeans were afraid that the invading Israelites would dispossess them of the land, and they therefore sallied forth to obstruct the direct road. Their opposition forced the tribes of Israel to make a long detour round the country of Idumea, and to turn to the east of the mountain ranges of Seir in order to approach Canaan from the opposite side. Not being permitted to attack the Idumeans and the kindred tribes of the Ammonites, the Israelites had to traverse the border of the eastern desert in order to reach the inhabited regions at the source of the Arnon, which flows into the Dead Sea. Moses now sent conciliatory messages to Sihon, to request that the people might pass through his territory on their way to the Jordan. Sihon refused his consent, and marched an army to the borders of the desert to oppose the advance of the invaders. The Israelites of the new generation, animated with youthful prowess, put themselves in battle array, and routed the hostile troops, whose king they slew at Jahaz. This victory was of incalculable importance to the Israelites; it strengthened their position and inspired them with self-reliance. They at once took possession of the conquered district, and henceforth abandoned their nomadic life. Whilst the Israelites felt confident of success in conquering the Land of Promise, the Canaanites, on the other hand, were terror-stricken at the defeat of the mighty Sihon. The Israelites could now move about freely, being no longer incommoded by the narrow belt of the desert, nor by the suspicions of unfriendly tribes. Dangers having given way to a state of security, this sudden change of circumstances aroused in their bosoms virtuous emotions, together with ignoble passions. The people of Moab now perceived that their feeble existence was threatened by their new neighbours. Balak, their king, felt that he could not cope with the Israelites in the open field of battle, and he preferred to employ the arts of Balaam, the Idumean or Midianite magician, whose maledictions were supposed to have the power of calling down distress and destruction on an entire people or on a single individual. Balaam having been struck with amazement at the sight of Israel's encampment, the intended maledictions were changed on his lips into blessings. He averred that no "enchantment avails against Jacob, and no divination against Israel," a glorious future having been assured to that people. But he advised the king to have recourse to a different charm, which might have a pernicious effect upon the Israelites, namely, to beguile them to the vice of profligacy by means of depraved temple maidens.