Numbers 35:25

The congregation shall deliver the slayer—unto the death of the high priest— By this punishment inflicted on the man-slayer, others were taught to be very watchful over themselves, lest by negligence they should chance to kill any body, and so be forced into banishment. It would be endless to relate the different conjectures of the learned concerning the return of the homicide upon the death of the high priest. Many of the Jews affirm, that the death of so eminent a person, being lamented with the greatest concern by the whole nation, was one of the best means possible to put an end to all private resentments, and to unite men in friendship and affection: but the greater part of Christians consider this circumstance as a type of our deliverance through the death of Jesus Christ, by which mankind obtained entire and spiritual freedom, and a privilege of returning to their own country; namely, heaven. There were some footsteps of this custom among the Gentiles; for Servius, upon the 6th AEneid, ver. 143 has observed, that, upon the death of the high priest at Aricinum, those who had taken refuge in that temple were at liberty to return. We find in Philostratus a law of the citizens of Memphis: that, in the case of manslaughter, the party was obliged to fly, and put himself into the hands of the Gymnosophists, or Indian divines, who were to absolve him by water of lustration, and then he became, as we say, rectus in curia, or, an acquitted man, after he had first offered a sacrifice of inconsiderable value at the grave of the person whom he had unfortunately killed. De Vita Apollon. lib. vi. sect. 2. c. 5.