For as many of you as were baptized into Christ have put on Christ.
27. As many of you as have been baptized. The greater and loftier the privilege is of being the children of God, the farther is it removed from our senses, and the more difficult to obtain belief. He therefore explains, in a few words, what is implied in our being united, or rather, made one with the Son of God; so as to remove all...
The apostle having just before been speaking of the promise made to Abraham, and representing that as the rule of our justification, and not the law, lest they should think he did too much derogate from the law, and render it altogether useless, he thence takes occasion to discourse of the design and tendency of it, and to acquaint us for what purposes it was given.
Commenting on Galatians 3:19-29
For as many of you as have been baptized into Christ,.... Not that it is to be imagined that these churches of Galatia, or any of the primitive churches, consisted of baptized and unbaptized persons; for this would be acting contrary to the commission of Christ and the order of the Gospel: but this way of speaking supposes that there might be some of them...