Once Saved, Always Saved
The doctrine “once saved, always saved” holds that the justified believer can never again lose his salvation, whatever his sins to come: faith received once would set him beyond danger for ever. Scripture, on the contrary, calls to persevere to the end, warns the believer that he can fall, and names sins that close the Kingdom.
Persevering to the end
The salvation promised goes to the one who holds firm to the end. “But whoever holds firm to the end will be saved.” Matthew 24:13 The promise hangs on perseverance, which would make no sense if salvation were secured in advance and for ever. The same word returns at the close of the trials: “Be faithful unto death, and I will give you the crown of life.” Revelation 2:10 The crown goes to the one who remains faithful unto death.
The warning of falling
Scripture warns the believer himself against falling. “So let the one who thinks he is standing take care not to fall.” 1 Corinthians 10:12 The warning is addressed to one already standing in the faith: one is not warned of a fall that cannot happen. Hebrews describes those who, after being enlightened, having tasted the heavenly gift and received the Holy Spirit, then fall away: “it is impossible, in the case of those who have once been enlightened, who have tasted the heavenly gift… and who have then fallen away, to renew them again to repentance.” Hebrews 6:4-6 These had received grace and lost it. The impossibility Hebrews speaks of does not shut the door of return: it bears on a second baptism, as though one could crucify Christ afresh to begin anew. Against the rigorists who refused all pardon to the baptized who fell again, the Church has always held that the sinner can rise as long as he lives, through penance: “Would I not rather that he turn from his conduct and live?” Ezekiel 18:23 Whoever has sinned still has “an advocate with the Father,” 1 John 2:1 and the grace lost is recovered in the sacrament of reconciliation. The same book warns that sin committed wilfully after knowing the truth awaits only a dreadful judgement: “if we sin deliberately after receiving the knowledge of the truth, there no longer remains any sacrifice for sins, but only a fearful expectation of judgment.” Hebrews 10:26-27 And one who, having escaped the defilements of the world through the knowledge of the Lord, is again entangled in them, falls lower than at the start: “their last condition becomes worse than the first.” 2 Peter 2:20
The branch cut off
Christ presents himself as the vine and believers as his branches, and every branch that ceases to bear fruit is taken away. “Every branch in me that does not bear fruit he takes away.” John 15:2 The branch cut off was joined to the vine before being removed. “Whoever does not remain in me is thrown out like a branch and withers; such branches are gathered up, thrown into the fire, and burned.” John 15:6 Scripture takes up the image again with the branch grafted onto the olive tree: held by faith, it can be cut off if it does not remain. “They were cut off because of their unbelief, and you stand by faith. Do not be proud; rather, be in awe… otherwise you too will be cut off.” Romans 11:20-22
Blotted from the book of life
The names of the saved are written in a book, and that inscription can be blotted out. The promise made to the victor supposes it: “The one who conquers will be clothed in white garments; I will not blot his name out of the book of life.” Revelation 3:5 To promise not to blot out the name of the one who conquers amounts to saying that the name of the one who does not conquer can be. And the close of the book confirms that this share can be lost, threatening whoever tampers with God’s word with being cut off from eternal life: “if anyone takes away from the words of the book of this prophecy, God will take away his share of the tree of life and of the holy city.” Revelation 22:19
The sins that close the Kingdom
Some sins exclude from the Kingdom the one who commits them, and Scripture says so to believers already received into the Church. It lists these works and concludes: “those who do such things will not inherit the kingdom of God.” Galatians 5:21 The same warning is repeated elsewhere with the same firmness: “Do not be deceived: neither the immoral, nor idolaters, nor adulterers… will inherit the kingdom of God.” 1 Corinthians 6:9-10 Scripture also distinguishes a sin that makes the soul lose its life from one that does not kill it This is the distinction between mortal sin, which destroys charity and makes one lose the sanctifying grace received at baptism, and venial sin, which wounds that life without extinguishing it. To lose salvation is to lose that grace by a freely consented mortal sin; whoever dies without it cannot inherit the Kingdom.: “There is a sin that leads to death… there is a sin that does not lead to death.” 1 John 5:16-17 The Old Testament already taught it: the righteous man who turns from his righteousness dies in his sin, and his past righteous deeds do not save him. “if the righteous man turns away from his righteousness to do evil… None of the righteousness he practiced will be remembered.” Ezekiel 18:24
The fear of Paul
Saint Paul himself did not think he stood beyond danger: “I treat my body hard and master it, for fear that after proclaiming the message to others, I myself should be disqualified.” 1 Corinthians 9:27 He commands the faithful to work out their salvation in fear: “work out your salvation with fear and trembling.” Philippians 2:12 And he confesses he has not yet reached the goal, but still presses on toward it: “Not that I have already won the prize, or already reached perfection; but I press on in my course, trying to lay hold of it.” Philippians 3:12 Such fear would be empty if salvation, once received, could no longer be lost. The Council of Trent settled this point against the Reformers: no one can hold for certain, with a certainty that excludes all doubt, that he is among the predestined and will persevere to the end; final perseverance is a gift God grants and that one asks for, not a good one holds in hand. Paul’s fear is that of every believer who knows his salvation still on the way.
God’s design and the seal of the Spirit
God’s eternal design is invoked, taken as a chain that nothing breaks. “Those whom he predestined, he also called; those whom he called, he also justified; and those whom he justified, he also glorified.” Romans 8:30 Paul describes the work of God, who on his side remains faithful without fail and brings to its term what he has resolved; but this faithfulness leaves open the possibility that the man called may withdraw from it, he who elsewhere fears being himself rejected. The word to the Philippians is invoked in the same way: “the one who began a good work in you will carry it through to completion until the day of Christ Jesus.” Philippians 1:6 Paul voices his confidence in the fidelity of God, who completes the work he begins; the freedom of man to abandon it remains, as his own fear of being rejected shows. The pledge God places in the believer is invoked at last. “were marked with the seal of the promised Holy Spirit. This Spirit is the pledge of our inheritance.” Ephesians 1:13-14 The Greek word rendered “pledge,” arrabōn (ἀρραβών), means the down payment that binds to the full payment without yet holding it: it guarantees the fidelity of God, not that man cannot withdraw his share. The same Paul warns against grieving this Spirit with whom one is marked. “Do not grieve the Holy Spirit of God: it is by him that you have been marked with a seal for the day of redemption.” Ephesians 4:30
What the promises guarantee
This doctrine rests on the promises where Christ keeps his own. “I give them eternal life: they will never perish, and no one will snatch them out of my hand.” John 10:28 The promise rules out any power that would tear us from God by force; it leaves whole our freedom to turn away from him ourselves. Likewise, the list of what cannot separate us from God names forces outside ourselves: “neither death nor life, neither angels… nor any other creature will be able to separate us from the love of God.” Romans 8:38-39 No creature separates us from Christ; our own sin, freely chosen, still can. God never fails on his side: he keeps his own, calls them and strengthens them. Salvation is thus kept in firm hope, resting on his fidelity To hold one’s salvation as secured for ever is precisely presumption, one of the two sins against hope; the other is the despair of one who thinks himself lost beyond return. Between the two stands hope, which awaits salvation with confidence without possessing it in advance, resting not on its own strength but on the fidelity of God and on the grace, asked for, of persevering to the end., and in the prayer that obtains the grace of final perseverance.