Cities for refuge — Or, of escape for manslayers: And these cities are assigned among the Levites, partly because they might be presumed to be the most proper and impartial judges between man — slayers, and wilful murderers; partly because their presence and authority would more effectually bridle the passions of the avenger of blood who might pursue him thither; and perhaps to signify, that it is only in Christ (whom the Levitical priests represented) that sinners find refuge and safety from the destroyer.
Related Commentaries of Numbers 35:6
Numbers 35:6
6 And among the cities which ye shall give unto the Levites there shall be six cities for refuge, which ye shall appoint for the manslayer, that he may flee thither: and to them ye shall add forty and two cities.