For the stranger; not the proselyte only, but all strangers, this being no matter of religious privilege, but of common right, and agreeable to the law of nature and practice of wise heathens.
Related Commentaries of Numbers 35:15
Numbers 35:15
15 These six cities shall be a refuge, both for the children of Israel, and for the stranger, and for the sojourner among them: that every one that killeth any person unawares may flee thither.