It is possible that some men accepted the gospel under the delusion that it afforded a shelter for sin. The sensualist, deterred from his indulgences by fear of the Law, joined in Paul's campaign against it, imagining that Grace would give him larger freedom. If "where sin abounded grace did superabound," he would say in his heart, Why not sin the more, so that grace might have a greater victory? This is no fanciful inference. Hypocrisy has learned to wear the garb of evangelical zeal; and teachers of the gospel have not always guarded sufficiently against this shocking perversion. Even the man whose heart has been truly touched and changed by Divine grace, when the freshness of his first love to Christ has passed away and temptation renews its assaults, is liable to this deception. He may begin to think that sin is less perilous, since forgiveness was so easily obtained. He may presume that as a son of God, sealed by the Spirit of adoption, he will not be allowed to fall, even though he stumble. He is one of "God's elect"; what "shall separate him" from the Divine love in Christ? In this assurance he holds a talisman that secures his safety. What need to "watch and pray lest he enter into temptation," when the Lord is his keeper? He is God's enfranchised son; "all things are lawful" to him; "things present" as well as "things to come" are his in Christ. By such reasonings his liberty is turned into an _occasion to the flesh_. And men who before they boasted themselves sons of God were restrained by the spirit of bondage and fear, have found in this assurance the occasion, the "starting-point" (ἀφορμή) for a more shameless course of evil.
In the view of Legalism, this is the natural outcome of Pauline teaching. From the first it has been charged with fostering lawlessness. In the Lutheran Reformation Rome pointed to the Antinomians, and moralists of our own day speak of "canting Evangelicals," just as the Judaists alleged the existence of immoral Paulinists, whose conduct, they declared, was the proper fruit of the preaching of emancipation from the Law. These, they would say to the Apostle, are your spiritual children; they do but carry your doctrine to its legitimate issue. This reproach the gospel has always had to bear; there have been those, alas, amongst its professors whose behaviour has given it plausibility. Sensualists will "turn the grace of our God into lasciviousness;" swine will trample under their feet the pure pearls of the gospel. But they are pure and precious none the less.
This possibility is, however, a reason for the utmost watchfulness in those who are stewards in the administration of the gospel. They must be careful, like Paul, to make it abundantly clear that they "establish" and do not "make void law through faith" (Rom. iii. 31). There is an evangelical Ethics, as well as an evangelical Dogmatics. The ethics of the Gospel have been too little studied and applied. Hence much of the confessed failure of evangelical Churches in preserving and building up the converts that they win.
II. Faith in Christ gives in truth a new efficacy to the moral law. For it works through love; and love fulfils all laws in one (vv. 13_b_, 14). Where faith has this operation, liberty is safe; not otherwise. _Love's slaves are the true freemen._
The legalist practically takes the same view of human nature as the sensualist. He knows nothing of "the desire of the Spirit" arrayed against that of the flesh (ver. 17), nothing of the mastery over the heart that belongs to the love of Christ. In his analysis the soul consists of so many desires, each blindly seeking its own gratification, which must be drilled into order under external pressure, by an intelligent application of law. Modern Utilitarians agree with the ancient Judaists in their ethical philosophy. Fear of punishment, hope of reward, the influence of the social environment--these are, as they hold, the factors which create character and shape our moral being. "Pain and pleasure," they tell us, "are the masters of human life." Without the faith that man is the child of God, formed in His image, we are practically shut up to this suicidal theory of morals. _Suicidal_ we say, for it robs our spiritual being of everything distinctive in it, of all that raises the moral above the natural; it makes duty and personality illusions.