Reference for Ezekiel 48:12

וְהָיְתָ֨ה לָהֶ֧ם תְּרוּמִיָּ֛ה מִתְּרוּמַ֥ת הָאָ֖רֶץ קֹ֣דֶשׁ קָדָשִׁ֑ים אֶל־גְּב֖וּל הַלְוִיִּֽם׃

And it shall be unto them a portion set apart from the offering of the land, a thing most holy, by the border of the Levites.