But though we, or an angel from heaven, preach any other gospel to you than that which we have preached to you, let him be accursed.…
First, we have here set before us the inflexibility and unvariableness of the gospel and doctrine of Christ; that it is a thing which does not change with times, or persons, or conditions, but is still one and the same, otherwise the apostle could not have been thus absolute and peremptory about it. What was religion formerly, is religion still; and what is now religion, was religion many years ago in the genera-lions which are past, and will be, and must be likewise to the end of the world. We speak now in regard of the things themselves in their own nature. Indeed men's opinions alter and vary about them, but the points themselves are still the same: we can have no new gospel, nor new Jesus, nor new Spirit of God, as the apostle seems to imply in the Scripture before alleged. All these things are unalterable, and inviolable, and indispensable; there's no changing, nor bartering of them. Look as the principles of nature are immutable, so likewise the principles of grace. That the principles of nature are so is very clear; reason is the same in all men, and in all nations, and in all ages, and the same common principles of it are scattered and dispersed, and communicated to the whole world. This holds also (by a proportion) as to the principles of religion and Christianity; though so many have not these principles in them, as have the principles of nature: yet so many as have them, they have them as immutably and unchangeably, one as the other; and ye may as soon rase out these, as ye may rase out them. The ground hereof is this: Because these things are laid in the nature of God Himself, who alters not; as God Himself is unchangeable, so is His truth which issues and proceeds from Himself. And such a kind of thing is the gospel, it is an extract and emanation from God; it was hid in Him, and it does spring out, and flow forth from Him.
(T. Horton, D. D.)
Parallel VersesKJV: But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed.