Joel 4:6 Halakhah

וּבְנֵ֤י יְהוּדָה֙ וּבְנֵ֣י יְרוּשָׁלִַ֔ם מְכַרְתֶּ֖ם לִבְנֵ֣י הַיְּוָנִ֑ים לְמַ֥עַן הַרְחִיקָ֖ם מֵעַ֥ל גְּבוּלָֽם׃

the children also of Judah and the children of Jerusalem have ye sold unto the sons of Jevanim, that ye might remove them far from their border;