20:1-6 When the Israelites were settled in their promised inheritance, they were reminded to set apart the cities of refuge, whose use and typical meaning have been explained, Nu 35; De 19. God's spiritual Israel have, and shall have in Christ and heaven, not only rest to repose in, but refuge to secure themselves in. These cities were designed to typify the relief which the gospel provides for penitent sinners, and their protection from the curse of the law and the wrath of God, in our Lord Jesus, to whom believers flee for refuge, Heb 6:18.

4. he that doth flee unto one of those cities shall stand at the entering of the gate of the city—It was the place of public resort, and on arriving there he related his tale of distress to the elders, who were bound to give him shelter and the means of support, until the local authorities (Jos 20:6), having carefully investigated the case, should have pronounced the decision. If found guilty, the manslayer was surrendered to the blood-avenger; if extenuating circumstances appeared, he was to remain in the city of refuge, where he would be safe from the vindictive feelings of his pursuers; but he forfeited the privilege of immunity the moment he ventured beyond the walls.