In the old Roman games, there was a gladiator called the retiarius who fought with a net. He sought to entangle his opponent with a mesh, then stab him with a trident. Satan does the same thing with legalistic preaching. He seeks to enmesh the believer's conscience with pride of good works, and our ever-lingering unbelief toward the work of Christ on the cross. Christ's death frees us from fear, because He paid the full price for our sins. His death also frees us from the Old Covenant, because His death establishes the New Covenant in its place. But Satan wants to obscure the cross and turn our minds to our own works, or the works of a priest. Satan seeks to get us down, get his knee into our back, and lock the yoke of God's law back down around our neck. But Paul says in this verse to take a militant stance against Satan's entangling strategy Do not tolerate works-salvation teaching, not even for a moment! This is a non-negotiable area of Christian life and ministry.
Jack is the teaching elder of Ironworks Pike Community Church. He is a graduate of Columbia Biblical Seminary http://www.ciu.edu.