Numbers 35:5

Overview - Numbers 35
1	Eight and forty cities for the Levites, with their suburbs, and measure thereof.
6	Six of them are to be cities of refuge.
9	The laws of murder and manslaughter.
31	No satisfaction for murder.

Numbers 35:5  (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.