וְהַלֵּוִ֥י אֲשֶׁר־בִּשְׁעָרֶ֖יךָ לֹ֣א תַֽעַזְבֶ֑נּוּ כִּ֣י אֵ֥ין ל֛וֹ חֵ֥לֶק וְנַחֲלָ֖ה עִמָּֽךְ׃ (ס)
And the Levite that is within thy gates, thou shalt not forsake him; for he hath no portion nor inheritance with thee.
Read halakhic rulings (Jewish law) on Deuteronomy 14:27: and classical halakhic sources.