These “interlopers” Paul roundly condemns as “sham-Christians,” that is, persons who called themselves and were probably regarded by others as Christians but whose conduct in fact falsified their claim to be Christian….It thus emerges that the interlopers were sham-Christians precisely because they had not really grasped the fundamental principle of the gospel—justification by faith apart from works of the law.
Alpha and Omega Ministries is a Christian apologetics organization based in Phoenix, Arizona. James White, director, is a professor, having taught Greek, Systematic Theology, and various topics in the field of apologetics for numerous schools.