or works righteousness; (2) the opposite concept of antinomianism; and perhaps most significant for our own day (3) the curious complex of fantastic ideas and doctrines that goes by the name of Gnosticism. Paul confronted each of these in several epistles, notably Romans, Galatians, and Colossians. John also deals with Gnosticism in his first two letters. In Galatians 1, Paul warns against deserting the One who called us for “a different Gospel, which is really no Gospel at all” (Gal. 1:6–7 NIV).