The suburbs, or pasture lands about the cities, are measured a thousand cubits broad, and are to be two thousand cubits along each of the four boundaries. If the figures given are correct it would seem that, although the wall of the city is spoken of, the measurement must really have begun in the centre of the city; otherwise there could never have been a square of land, cities not taking that form; nor could a boundary of two thousand cubits on each aspect, north, south, east, and west, be made out. The cities must often have been small, a cluster of poor huts built of clay or rude brick, with a wall of similar material. We need imagine no stately dwellings or fine pleasure grounds when we read here of the provision for the Levites. Within the wall they had their bare, mean cottages; outside, there might be a breadth of perhaps four hundred yards of poor enough ground which they could claim. But as the tithes were not always paid, so the dwellings and the pasturage may not always have been allotted. There is not much reason to wonder that in a short time after the settlement in Canaan the Levites, finding no special work at the sanctuary, and obtaining little support from the offerings, gradually became part of the tribes in which they happened to have their abode. Hence we read in Judges (xvii. 7) of "a young man out of Bethlehem-judah, of the family of Judah, who was a Levite." The main purpose of the present statute, so far as it refers to the dwellings of the Levites, would appear to have been economic, not religious. It was that all the tribes might have their share of maintaining the servants of the sanctuary. But it seems likely that a class half priestly would, in lack of other duty, attach itself to the high places, and set up a worship not contemplated by the law. And if this is to be regarded as a misfortune, the choice of the Levitical cities is in some cases difficult to account for. Kedesh in Naphtali had been a famous holy place of the Canaanites; so probably were others, as Gibeon, Shechem, Gath-rimmon. The special symbol of Jehovah was the ark; and where the ark was the principal national rites were always performed. But in a time of pioneer work and constant alarms the central sanctuary could not always be visited, and the Levites appear to have lent themselves to worship of a local kind.