giving vengeance to those who don't know God, and to those who don't obey the Gospel of our Lord Jesus,
Two major groups are addressed in the scriptures: Jews and Gentiles. The Jews are a group separated by God; all others are considered Gentiles. Regardless of whether one were a Jew or Gentile, if he were one of "them that know not God" and/or "them that obey not the gospel of our Lord Jesus Christ," then he was in jeopardy of losing his eternal soul (Matthew 28:18-20; Mark 16:15-16).