Jamieson-Fausset-Brown on Ezekiel 48:15
The five thousand rods, apportioned to the city out of the twenty-five thousand square, are to be laid off in a square of four thousand five hundred, with the two hundred fifty all around for suburbs.
profane--that is, not strictly sacred as the sacerdotal portions, but applied to secular uses.
Adam Clarke on Ezekiel 48:15
And the five thousand that are left - The territory of the Levites was twenty-five thousand square cubits, Eze 48:20, But their city was only four thousand five hundred square cubits, see Eze 48:13 and Eze 48:16; there remained, therefore, ten thousand cubits square to be divided, of which five thousand cubits in breadth, by twenty-five thousand in length, on the east and west sides, were reserved for a sort of second city; or for suburbs where laymen might dwell who were employed by those priests and Levites who lodged in the temple and in the city, Eze 48:18. And another space of one thousand cubits in breadth, by twenty-five thousand in length, which extended only from north to south, was…
Read the whole note in the consoleJohn Gill on Ezekiel 48:20
All the oblation shall be five and twenty thousand by five and twenty thousand,.... Or, "every oblation" (w); everyone of the oblations; that for the priests and the sanctuary; that for the Levites, and that for the city, its suburbs, and the maintenance of those that served the city; each were a square of five and twenty thousand reeds:
ye shall offer the holy oblation foursquare, with the possession of the city; taking in the possession of the city, or what that possessed, the oblation of land for that, and its suburbs, and for produce to support those that served it, should be a foursquare of the above dimensions.
(w) "omnis oblatio", Pagninus, Montanus.
Tyndale Open Study Notes on Ezekiel 48:15-20
To the south was a narrower strip for public use where the city was located. The overall shape of the central area was thus a square. The city was a visible symbol and focus of unity for the twelve tribes, and home to residents from the various tribes.