giving vengeance to those who don't know God, and to those who don't obey the Gospel of our Lord Jesus,
In the two classes, those who know not God and those who obey not the gospel, it is not probable that Paul has in mind a distinction between Jews and Gentiles. The Jews were not ignorant of God, yet they are described by John as not knowing him. The Gentiles are described by Paul as knowing God, but as refusing to glorify him as God (Romans 1:21). Paul rather describes here the subjects of God’s judgment as one class, but under different aspects (Vincent, Vol. II 949).