Галатам 3:27

baptized into Christ-- (Rom 6:3). have put on Christ--Ye did, in that very act of being baptized into Christ, put on, or clothe yourselves with, Christ: so the Greek expresses. Christ is to you the toga virilis (the Roman garment of the full-grown man, assumed when ceasing to be a child) [BENGEL]. GATAKER defines a Christian, "One who has put on Christ." The argument is, By baptism ye have put on Christ; and therefore, He being the Son of God, ye become sons by adoption, by virtue of His Sonship by generation. This proves that baptism, where it answers to its ideal, is not a mere empty sign, but a means of spiritual transference from the state of legal condemnation to that of living union with Christ, and of sonship through Him in relation to God (Rom 13:14). Christ alone can, by baptizing with His Spirit, make the inward grace correspond to the outward sign. But as He promises the blessing in the faithful use of the means, the Church has rightly presumed, in charity, that such is the case, nothing appearing to the contrary.

The apostle in this chapter, I. Reproves the Galatians for their folly, in suffering themselves to be drawn away from the faith of the gospel, and endeavours, from several considerations, to impress them with a sense of it. II. He proves the doctrine which he had reproved them for departing from - that of justification by faith without the works of the law, 1. From the example of Abraham's justification. 2. From the nature and tenour of the law. 3. From the express testimony of the Old Testament; and, 4. From the stability of the covenant of God with Abraham. Lest any should hereupon say, "Wherefore then serveth the law?" he answers, (1.) It was added because of transgressions. (2.) It was given to convince the world of the necessity of a Saviour. (3.) It was designed as a schoolmaster, to bring us to Christ. And then he concludes the chapter by acquainting us with the privilege of Christians under the gospel state.

3:27 united with Christ in baptism: See Rom 6:3-4. Baptism represents death of an old life and birth into a new one. In the new life, the law’s curse no longer has any force (cp. Rom 7:1-6). • have put on Christ, like putting on new clothes: Christ covers us and gives us a new identity. Cp. Col 3:12; 1 Thes 5:8.