Each city is a state of mind, a settled arrangement of thoughts a person lives inside, and the persecution is the resistance that state throws up against the awakening spirit. To flee to another city is to move the awareness on, out of the mental region that has turned hostile and into a fresh state where the work can continue. The counsel is inward migration, the refusal to stay and be crushed where the ground has hardened against you.
The cities of Israel are the many states the ruling faculties must pass through, and they are not exhausted before the Son of man comes: the higher self, the Christ born in a person, arrives while the journey through these inner regions is still unfinished. Awakening does not wait for every state to be conquered; the divine self rises inside the passage itself.
Cities: the settled states of mind a person dwells within, each a fixed arrangement of thought
Cities of Israel: the whole succession of inner states the ruling faculties must pass through
Son of man: the higher self, the Christ-nature born within, arriving while the inner journey is still underway