19 If therefore all those works “shall not possess the kingdom of God” (yea not the works, but “they that do such things;” for such works there shall be none in the fire: for they shall not, while burning in that fire, be committing theft or adultery; but “they that do such things shall not possess the kingdom of God”); they shall not therefore be on the right hand, with those to whom it shall be said, “Come, you blessed of My Father, receive the kingdom:” because, “they that do such things shall not possess the kingdom of God.” If therefore on the right they shall not be, there remains not but that they must be on the left. To those on the left what shall He say? “Go ye into eternal fire.” Because, “their time shall be for ever.”
Source: The Enarrations, or Expositions, on the Psalms (New Advent)