The entire offering will be 25,000 by 25,000 cubits;a you are to offer the holy offering, a square that includes the property of the city, Bible see other translations
A square of roughly 8.12 miles (13.06 km) on each side

“The entire offering.” That is, the entire offering area that is for the Levites, the priests (and the temple), and the city of Jerusalem. The square area is roughly 8.12 miles (13.06 km) on each side. For more detail, see commentary on Ezekiel 48:8.

“the property of the city.” That is, the city of Jerusalem.

Commentary for: Ezekiel 48:20