And he shall dwell in that city, until he stand before the congregation for judgment, and until the death of the high priest that shall be in those days: then shall the slayer return, and come unto his own city, and unto his own house, unto the city from whence he fled. (Joshua 20:6)
However distinguished his position might be, he [the manslayer] must suffer the penalty of his crime. The safety and purity of the nation demanded that the sin of murder be severely punished. Human life, which God alone could give, must be sacredly guarded.
3-6 The blood of the victim, like the blood of Abel, will cry to God for vengeance on the murderer and on all who shield him from the punishment of his crime. Whoever,
be it individual or city,—will excuse the crime of the murderer, when convinced of his guilt, is a partaker of his sin, and will surely suffer the wrath of God. The Lord designed to impress upon His people the terrible guilt of murder, while He would make the most thorough and merciful provision for the acquittal of the innocent (The Signs of the Times, January 20, 1881).