Judah shall dwell for ever— That is, shall subsist a separate kingdom and estate, (as it is explained in the next clause) from generation to generation, or, for several generations or years; referring to the Christian church, and the final restoration of the Jews. The words may be understood in their full force.
Related Commentaries of Joel 3:20
Joel 3:20
20 But Judah shall dwellh for ever, and Jerusalem from generation to generation.