The city of Gezer in this cave-dwelling period was surrounded by a unique wall or rampart.[80] This consisted of a stone wall about 6 feet high and 2 feet thick, on the outer side of which was a rampart of packed earth about 6 feet 6 inches at the base and sloping toward the top. This bank of earth was protected by a covering of small stones about 8 inches in depth. This rampart never could have been of much value in warfare, and was, perhaps, meant as a protection against incursions of wild animals. In the hillsides around Gezer there are many caves which were probably human habitations during this period, but as they have been open during many centuries, traces of their early occupation have long since been destroyed. At Beit Jibrin, six or eight hours to the south of Gezer, there are also many caves in the rock, numbers of which are artificial. At various periods these have been employed as residences. It is altogether probable that the use of some of them goes back to the time of the cave-dwellers of Gezer. Mr. Macalister has suggested a connection between these cave-dwellers of Gezer and the Biblical Horites,[81] since Horite means “cave-dweller.” In the Bible the Horites are said to have dwelt to the east of the Jordan, and more especially in Edom (Gen. 14:6; 36:20, 21, 29; Deut. 2:12, 22). It seems probable that the reason why the Bible places them all beyond Jordan is that the cave-dwellers had disappeared from western Palestine centuries before the Hebrews came, while to the east of the Jordan they lingered on until displaced by those who were more nearly contemporary with the Hebrews. On the west of the Jordan megalithic monuments were probably once numerous, since traces of them still survive in Galilee and Judæa,[82] but later divergent civilizations have removed most of them. In the time of Amos one of these “gilgals” was used by the Hebrews as a place of worship, of which the prophet did not approve.[83] It seems probable that there was a settlement of these cave-dwellers at Jerusalem. The excavations of Capt. Parker brought to light an extensive system of caves around the Virgin’s Fountain, Ain Sitti Miriam, as the Arabs call it, which is the Biblical Gihon.[84] These caves are far below the present surface of the ground. It was found, too, that there would be no spring at this point at all, if some early men had not walled up the natural channel in the rock down which the water originally ran. These men, judging by the fragments of pottery and the depth of the débris, belonged to about the same period as the cave-dwellers of Gezer. They apparently settled at this point because of the water, and one of the caves may have been a sanctuary to their god. A new vista is thus added to the history of that city, which was later the scene of so much Biblical life.