Antinomianism, crassly stated, is the idea that a person can be a Christian without doing good works. It is a separation of good works from true Christian profession. Sometimes called “easy believism,” the idea of antinomianism is common in some Christian circles today.
I have treated the necessity of good works in the life of a Christian in a post called “Faith + Works” on this blog. In that post, I discussed John H. Gerstner’ s approach to antinomianism. Gerstner teaches that people must necessarily do good works if they are Christians. Those works do not earn them salvation, but they must be present in Christian’s lives.
Martin Luther, the great protestant reformer, first used the term “antinomian.” Luther wrote, “Anyone who does not do good works in this manner is an unbeliever…Thus, it is just as impossible to separate faith and works as it is to separate heat and light from fire!” (“Holiness Wars: Antinomianism in Church History,” Mar.21, 2012 by Michael Horton)
Will Christians be perfect? Of course they will not (Romans 7:7-25). All Christians sin, and there is no sin that a Christian cannot commit. But no true Christian makes a habit of sin without repentance.