The doctrine of “once saved, always saved” (also called eternal security or the perseverance of the saints) teaches that Christians can never lose their salvation, no matter what sin they commit or whether they repent. It is primarily taught among certain Protestant traditions, particularly those influenced by Calvinism, whose adherents number in the hundreds of millions around the world.
But what is often misunderstood, ignored or simply not known is that Scripture speaks of salvation in three tenses: Christians were saved (Rom. 8:24), are being saved (1 Cor. 1:18; 2 Cor. 2:15), and will be saved (Rom. 5:9-10; Heb. 9:28; 1 Pet. 1:5). Hence, Paul says that “our salvation is nearer now than when we first believed” (Rom. 13:11).
Final Christian salvation, therefore, is still future.
The New Testament repeatedly makes salvation conditional on perseverance and endurance in the faith. Jesus said, “The one who endures to the end, he will be saved” (Matt. 24:13). Paul says the Gospel saves us “if you hold firmly” to it; otherwise, one may have “believed in vain” (1 Cor. 15:1-2). Hebrews says, “We have become partakers of Messiah, if we hold fast… until the end” (Heb. 3:14; cp. Heb. 3:6).
These are real warnings, which would be emptied of any meaning if salvation could never be lost, no matter what. It is clear that Christians who were “once enlightened” and became “partakers of holy spirit” can fall away (Heb. 6:4-6). If “we go on sinning willfully after receiving the knowledge of the truth,” judgment remains (Heb. 10:26-31). 2 Peter 2 speaks of those who “have escaped the contamination of the world by the knowledge of our Lord and Savior Jesus Messiah,” but are “again entangled in it and overcome,” so that “their last state is worse for them than their first. For it would be better for them not to have known the right way than, having known it, to turn back from the holy command delivered to them.” The chapter concludes with the proverb: “A dog returns to its own vomit, and a sow, after washing, returns to rolling in the mud” (2 Pet. 2:20-22).
Paul’s own example destroys any notion that his salvation was permanently secured no matter what he did. He commands the church to “run in such a way that you may win,” and warns that he himself could be disqualified (1 Cor. 9:24-27). He also tells other Christians, “work out your salvation with fear and trembling” (Phil. 2:12). Because no one receives the prize when the race begins.
The biblical teaching is simple: salvation begins now, continues in the obedience of faith, and at the Parousia we will ultimately be saved. Salvation is for those who endure to the end (Matt. 24:13), for “we are not among those who shrink back and are destroyed, but among those who have faith leading to obtaining life” (Heb. 10:39).
