King David and the Doctrine of Perseverance

 According to the superscription, David wrote this when he was taken prisoner by the Philistines: "You [God] have delivered my soul from death, yes, my feet from falling, that I may walk before God in the light of life" (Psalm 56:13). It may be this verse which inspired Jude, the half-brother of Jesus, to write centuries later, "Now to Him who is able to keep you from stumbling and to present you blameless before the presence of His glory with great joy, to the only God our Savior, through Jesus Christ our Lord, be glory, majesty, dominion, and authority, before all time and now and forever. Amen" (Jude 1:24-25). 

Both men exult not in some belief that they must sustain their own faith, as the Pelagian claims, but rather in the knowledge that it is God's power that will sustain them to the end. 

Jesus also talked about this: "My sheep hear My voice and I know them, and they follow Me. I give them eternal life, and they will never perish, and no one will snatch them out of My hand. My Father, who has given them to Me, is greater than all, and no one is able to snatch them out of the Father's hand" (John 10:27-29). 

David and Jude write from their experiences of the faithfulness of God. Jesus, however, writes as the God who is faithful. It is on that faithfulness that the perseverance of the true believer depends and is guaranteed. 

I have been told by both Catholics and Mormons that it is arrogant to be sure now of my eternal life. They both claim that no one can be sure until he arrives at his eternal destination. They consistently refer to Matthew 24:13: "The one who endures to the end will be saved." But neither one ever considers how the believer endures. As cited above, the Bible tells us that it is God's action that gives endurance, not the willpower of the believer. And God can never fail. Therefore, the believer has a sound foundation for his assurance, just as the Apostle John tells us: "I write these things to you [Christians] who believe in the name of the Son of God, that you may know that you have eternal life" (I John 5:13). The possession of eternal life is something that the true believer has now, not something for which he merely hopes.