Thou shalt have no inheritance in their land. The priests had of necessity homes wherein to live when not on duty, but they had no territory of their own in the same sense as Jews of other tribes. I am thy part and thine inheritance.
Septuagint, ἐγὼ μερίς σου καὶ κληρονομία σου. This is not to be explained away, as if it meant only that they were to live "of the altar." Just as the priests (and in a lesser sense all the Levites) were the special possession of the Lord, so the Lord was the special possession of the priests; and inasmuch as all the whole earth belonged to him, the portion of the priests was, potentially in all cases, actually for those who were capable of realizing it, infinitely more desirable than any other portion.
The spiritual meaning of the promise was so clearly felt that it was constantly claimed by the devout in Israel, irrespective of their ecclesiastical status (cf. Psalms 16:5; Lamentations 3:24, &c.).