[17] And the suburbs of the city shall be toward the north two hundred and fifty, and toward the south two hundred and fifty, and toward the east two hundred and fifty, and toward the west two hundred and fifty. [18] And the residue in length over against the oblation of the holy portion shall be ten thousand eastward, and ten thousand westward: and it shall be over against the oblation of the holy portion; and the increase thereof shall be for food unto them that serve the city. [19] And they that serve the city shall serve it out of all the tribes of Israel.