דברים, פרק י״ט, פסוק ז׳

Setting aside cities of refuge involves much more than simply drawing borders on a map. It creates a complex legal and spiritual system designed to carefully balance physical protection, personal atonement, and strict justice. The instruction to designate these cities appears twice, a repetition that serves a distinct purpose. Rather than just stating a rule, this repeated command acts as a direct warning and obligation placed upon the religious court. The court bears the practical responsibility to actively oversee and enforce the establishment of these safe havens [תורה תמימה, אדרת אליהו].

The specific location and physical character of these cities are crucial. They must be evenly scattered across the land, with clear and obvious directions pointing the way, ensuring that an accidental killer never faces an overly long escape route [העמק דבר, ביאור שטיינזלץ]. Furthermore, these locations cannot be ordinary towns; they must be heavily fortified strongholds. This level of defense is necessary to prevent a scenario where an angry blood avenger arrives with armed forces and attempts to breach the city by force [קיצור בעל הטורים].

A distinct line is drawn between the core concept of exile and the specific requirement to set up exactly three accessible cities. The fundamental Commandment of exile stands on its own as a means of spiritual atonement for the accidental killer. This need for atonement remains fully in effect even if there is no blood avenger actively pursuing him. However, the practical necessity of arranging three highly reachable cities is driven primarily by the very real and immediate fear of the avenger's revenge [העמק דבר].

Beyond the physical walls of protection, the system relies heavily on the strict legal awareness of everyone involved. The blood avenger must clearly understand that the moment the killer crosses into the city of refuge, any act of harm becomes absolutely forbidden. At the same time, the accidental killer must recognize that finding safety does not erase his actions. He does not walk away completely free. By entering the city, he steps into a binding legal framework where he must serve a strict sentence of confinement [ביאור שטיינזלץ].