Numbers 35:5 in the King James Version
And ye shall measure from without the city on the east side two thousand cubits, and on the south side two thousand cubits, and on the west side two thousand cubits, and on the north side two thousand cubits; and the city shall be in the midst: this shall be to them the suburbs of the cities.
Context
4 “The pasture lands of the cities, which you shall give to the Levites, shall be from the wall of the city and outward one thousand cubits around it.
5 You shall measure outside of the city for the east side two thousand cubits, and for the south side two thousand cubits, and for the west side two thousand cubits, and for the north side two thousand cubits, the city being in the middle. This shall be the pasture lands of their cities.
6 “The cities which you shall give to the Levites, they shall be the six cities of refuge, which you shall give for the man slayer to flee to. Besides them you shall give forty-two cities.