When I speak of the doctrine of perseverance, I mean this. I say that the Bible teaches that true believers, real genuine Christians, shall persevere in their religion to the end of their lives. They shall never perish. They shall never be lost. They shall never be cast away.
Once in Christ, they shall always be in Christ. Once made children of God by adoption and grace, they shall never cease to be His children, and become children of the devil. Once endued with the grace of the Spirit, that grace shall never be taken from them. Once pardoned and forgiven, they shall never be deprived of their pardon. Once joined to Christ by living faith, their union shall never be broken off. Once called by God into the narrow way that leads to life, they shall never be allowed to fall into hell. In a word, every man, woman, and child on earth who receives saving grace, shall sooner or later receive eternal glory. Every soul who is once justified and washed in Christ’s blood, shall at length be found safe at Christ’s right hand in the day of judgment.
Once in Christ, they shall always be in Christ. Once made children of God by adoption and grace, they shall never cease to be His children, and become children of the devil. Once endued with the grace of the Spirit, that grace shall never be taken from them. Once pardoned and forgiven, they shall never be deprived of their pardon. Once joined to Christ by living faith, their union shall never be broken off. Once called by God into the narrow way that leads to life, they shall never be allowed to fall into hell. In a word, every man, woman, and child on earth who receives saving grace, shall sooner or later receive eternal glory. Every soul who is once justified and washed in Christ’s blood, shall at length be found safe at Christ’s right hand in the day of judgment.
~ J.C. Ryle
Old Paths, “Perseverance”, [Carlisle, PA: Banner of Truth, 1999], 478, 479.