The sense is: Inasmuch as to take another man’s life by any means whatsoever is murder, and exposes the murderer to the penalty of retaliation; so, if the deed is done in hostility, it is in truth actual murder, and the murderer shall be slain; but if it be not done in hostility, then the congregation shall interpose to stop the avenger’s hand.
When he meeteth him - Provided, of course, it were without a city of refuge.
The case of the innocent slayer is here contemplated. In a doubtful case there would necessarily have to be a judicial decision as to the guilt or innocence of the person who claimed the right of asylum.
The homicide was safe only within the walls of his city of refuge. He became a virtual exile from his home. The provisions here made serve to mark the gravity of the act of manslaughter, even when not premeditated; and the inconveniences attending on them fell, as is right and fair, upon him who committed the deed.
Unto the death of the high priest - The atoning death of the Saviour cast its shadow before on the statute-book of the Law and on the annals of Jewish history. The high priest, as the head and representative of the whole chosen family of sacerdotal mediators, as exclusively entrusted with some of the chief priestly functions, as alone privileged to make yearly atonement within the holy of holies, and to gain, from the mysterious Urim and Thummim, special revelations of the will of God, was, preeminently, a type of Christ. And thus the death of each successive high priest presignified that death of Christ by which the captives were to be freed, and the remembrance of transgressions made to cease.