3:1-5 Several things made the folly of the Galatian Christians worse. They had the doctrine of the cross preached, and the Lord's supper administered among them, in both which Christ crucified, and the nature of his sufferings, had been fully and clearly set forth. Had they been made partakers of the Holy Spirit, by the ministration of the law, or on account of any works done by them in obedience thereto? Was it not by their hearing and embracing the doctrine of faith in Christ alone for justification? Which of these had God owned with tokens of his favour and acceptance? It was not by the first, but the last. And those must be very unwise, who suffer themselves to be turned away from the ministry and doctrine which have been blessed to their spiritual advantage. Alas, that men should turn from the all-important doctrine of Christ crucified, to listen to useless distinctions, mere moral preaching, or wild fancies! The god of this world, by various men and means, has blinded men's eyes, lest they should learn to trust in a crucified Saviour. We may boldly demand where the fruits of the Holy Spirit are most evidently brought forth? whether among those who preach justification by the works of the law, or those who preach the doctrine of faith? Assuredly among the latter.

3. begun—the Christian life (Php 1:6).

in the Spirit—Not merely was Christ crucified "graphically set forth" in my preaching, but also "the Spirit" confirmed the word preached, by imparting His spiritual gifts. "Having thus begun" with the receiving His spiritual gifts, "are ye now being made perfect" (so the Greek), that is, are ye seeking to be made perfect with "fleshly" ordinances of the law? [Estius]. Compare Ro 2:28; Php 3:3; Heb 9:10. Having begun in the Spirit, that is, the Holy Spirit ruling your spiritual life as its "essence and active principle" [Ellicott], in contrast to "the flesh," the element in which the law works [Alford]. Having begun your Christianity in the Spirit, that is, in the divine life that proceeds from faith, are ye seeking after something higher still (the perfecting of your Christianity) in the sensuous and the earthly, which cannot possibly elevate the inner life of the Spirit, namely, outward ceremonies? [Neander]. No doubt the Galatians thought that they were going more deeply into the Spirit; for the flesh may be easily mistaken for the Spirit, even by those who have made progress, unless they continue to maintain a pure faith [Bengel].