"He that formeth the mountains and createth the winds, He who turneth the morning into darkness, Who treadeth upon the high places of the earth, The Lord, the God of hosts is his name."[9] At a later period the religious conviction gained ground that God's omnipotence is equally manifested in ordaining the events of history as in regulating the succession of physical phenomena; that the same God who ordained the unchanging laws of nature, reveals himself in the rise and fall of nations. This conviction is a specific product of the Israelitish mind. Historical vicissitudes and natural surroundings conspired to sharpen its faculties for everything extraordinary and marvellous within the sphere of existing things. The land of Gilead had the same characteristics that appertained to the region on the other side of the Jordan. This district, originally owned by the Amorites, and by the kings of Sihon and Og, was now held by the sons of Reuben and Gad. From the summits of this territory also immense tracts of land were visible at a single view; but nothing beyond a mere blue streak could be seen of the distant ocean. This side of the Jordan was, therefore, less than the opposite side, endowed with poetic suggestiveness. The land of Gilead gave birth to no poet, it was the home of only one prophet, and his disposition was marked by a fierceness which accorded well with the rude and rough character of the territory in which he was born. The Jordan formed both a geographical and an intellectual landmark. At the time of Israel's conquests, Canaan was dotted with cities and fortified places, in which the invaders found some rudiments of civic culture. Gilead, on the other hand, contained but few towns, and these lay far apart from each other. The territories to the west of the Jordan had only partially been subjected and allotted. Large and important tracts of land were still in possession of the original inhabitants, but it can no longer be determined whether it was through the remissness of Joshua that the land of Canaan was not completely conquered. In his advanced years, Joshua did not display such vigour of action as was shown by his teacher, Moses. Gradually he appears to have lost the energy that is necessary in a commander. His followers of the tribes of Ephraim and Manasseh had already obtained the most productive part of the land; they were now resting on their laurels, and damped the warlike impetus of their brethren. The excitements of the early warfare having subsided, each of the tribes, or groups of tribes was concerned only with its individual affairs. This isolation prevented the several tribes from rounding off their territories by conquests from the original inhabitants of Canaan.