Ezekiel 45:1-6 YLT

1 And in your causing the land to fall in inheritance, ye lift up a heave-offering to Jehovah, a holy [portion] of the land: the length -- five and twenty thousand [is] the length, and the breadth ten thousand; it [is] holy in all its border round about.
2 There is of this for the sanctuary five hundred by five hundred, square, round about; and fifty cubits of suburb [is] to it round about.
3 And by this measure thou dost measure: the length [is] five and twenty thousand, and the breadth ten thousand: and in it is the sanctuary, the holy of holies.
4 The holy [portion] of the land it [is]; for priests, ministrants of the sanctuary, it is, who are drawing near to serve Jehovah; and it hath been to them a place for houses, and a holy place for a sanctuary.
5 `And of the five and twenty thousand of length, and of the ten thousand of breadth, there is to the Levites, ministrants of the house, for them -- for a possession -- twenty chambers.
6 `And of the possession of the city ye give five thousand of breadth, and of length five and twenty thousand, over-against the heave-offering of the holy [portion]: to all the house of Israel it is.