In The Savior of the World you can find B. B. Warfield’s excellent sermon called “Jesus Only.” It is a sermon on Acts 4:12: And there is salvation in no one else; for there is no other name under heaven that has been given among men by which we must be saved (NASB). Here is a great section of this sermon where Warfield talks about one of the great solas – Christ Alone.
First of all, there is the redoubled assertion: “in none other is there salvation,” and then again that none might miss it, “there is no other name under heaven, given among men, whereby we must be saved.”
Then there is the heaping up of clauses, in almost superfluous reiteration of the absoluteness of the exclusion of all but Jesus from the power of saving: there is “none other,” there is “no other name,” “under heaven,” “given among men”—as if it should be said, “Seek you wherever men can be found, search to the utmost limits of the encanopying sky,—nowhere among men, nowhere under the stretch of heaven’s roof, will you find a whisper of another name in which salvation can be found.”
And then, at last, there is the curious turn given to the phrase: “in which we must be saved.” We weaken it vastly in our careless current reproductions of it, saying, “neither is there any other name under heaven given among men wherein we may be saved,—wherein we can be saved.” Peter does not so phrase it. He says, “wherein we must be saved.” The accent of necessity is in it. It is not merely that we may be saved by Jesus, or that we can be saved by Jesus; but, if we be saved at all, it must be in Him that we are saved.
There is no possibility otherwise or elsewhere. And with the emergence of this vigorous ‘must’ at the end of the sentence the last hammer falls, the last rivet is clinched, and the last band of steel is fixed around this tremendous assertion of the exclusiveness of salvation in Jesus Christ alone.
Covenant Presbyterian Church