וְנַחֲלָ֥ה לֹא־יִֽהְיֶה־לּ֖וֹ בְּקֶ֣רֶב אֶחָ֑יו יְהוָה֙ ה֣וּא נַחֲלָת֔וֹ כַּאֲשֶׁ֖ר דִּבֶּר־לֽוֹ׃ (ס)
And they shall have no inheritance among their brethren; the LORD is their inheritance, as He hath spoken unto them.
Read kabbalistic (mystical) interpretation of Deuteronomy 18:2: and classical mystical sources.