West of the city hills gently rise to a slight elevation and shut out the view. The easternmost of the two promontories is lower than the western, which in its turn slopes to the east. Just south of the Mount of Olives, to the east of Jerusalem, there is a rift in the hills through which the distant mountains of Moab can be seen. From elevated buildings in the city the Dead Sea is also visible. The slope of the hills of Jerusalem and her broader outlook to the eastward are significant of the influences that moulded her earlier history. During the centuries that Israel was an independent nation the Philistine plain was nearly always in the hands of a hostile people. Jerusalem was thus cut off from influences that might otherwise have reached her from across the Mediterranean, and was shut up to influences that reached her through kindred tribes and nations to the east. Thus in intellectual kinship, as well as in physical outlook, the gaze of Jerusalem was directed toward the Orient. All Palestinian cities of importance were situated near perpetual springs. There are at Jerusalem but two unfailing sources of water--the Ain Sitti Miriam (the ancient Gihon) and the Bir Eyyub (Biblical En-rogel). These are both in the Kidron valley, the former just under the brow of the eastern hill some 400 yards from the southern point of the hill, the latter at the point where the valley of Hinnom and the Kidron unite. Of these two sources of supply, the Gihon is pre-eminently fitted to attract an early settlement. It is almost under the hill, whereas the other is out in the midst of the open valley. Gihon, too, is at the base of a hill that can be defended easily on three sides, whereas a town built on a hillside above En-rogel, as the modern Silwan is, could be easily attacked from above. These conditions determined the situation of the earliest settlement, which was near Gihon.