John Calvin Commentary James 2:14

"What doth it profit, my brethren, if a man say he hath faith, but have not works? can that faith save him?" — James 2:14 (ASV)

What does it profit? He proceeds to commend mercy. And as he had threatened that God would be a severe and very dreadful Judge to us unless we are kind and merciful towards our neighbors, and as, on the other hand, hypocrites objected and said that faith is sufficient for us (in which human salvation consists), he now condemns this vain boasting. The sum, then, of what is said is that faith without love avails nothing and is therefore wholly dead.

But here a question arises: Can faith be separated from love? It is indeed true that the exposition of this passage has produced that common distinction of the Sophists between unformed and formed faith. But James knew nothing of such a thing, for it appears from the first words that he speaks of a false profession of faith: for he does not begin this way, “If anyone has faith”; but rather, “If anyone says that he has faith”; by which he certainly intimates that hypocrites boast of the empty name of faith, which really does not belong to them.

That he then calls it faith, is a concession, as the Rhetoricians say. For when we discuss a point, it does no harm; indeed, it is sometimes advantageous to concede to an adversary what he demands. This is because as soon as the thing itself is known, what was conceded may be easily taken away from him. James then, being satisfied that it was a false pretext by which hypocrites covered themselves, was not inclined to raise a dispute about a word or an expression. Let us, however, remember that he does not speak according to his own personal conviction when he mentions faith, but that, on the contrary, he disputes against those who falsely pretended to have faith, which they entirely lacked.

Can faith save him? This is the same as if he had said that we do not attain salvation by a frigid and bare knowledge of God—a point which all confess to be undeniably true. For salvation comes to us by faith because it joins us to God. And this union is formed in no other way than by being united to the body of Christ, so that, living through his Spirit, we are also governed by him. There is no such thing as this in the dead image of faith. It is then no wonder that James denies that salvation is connected with it.