The term holy
denotes those who are different from their (unrighteous) neighbours and/or their own (unrighteous) past, with the difference (being holy) being the result of the Savior’s sanctifying work. As a result, these people have a lifestyle that contrasts with the lifestyle of the filthy.
Their lifestyle will continue into all eternity.
11 Let the evildoer still do evil, and the filthy still be filthy, and the righteous still do right, and the holy still be holy.”