Can a saved person ever be lost? Our Lord Jesus Christ emphatically answers that question for us. Listen to what he says,in John 10:27-30, "My sheep hear my voice, and I know them, and they follow me: and I give unto them eternal life; and THEY SHALL NEVER PERISH, neither shall any man pluck them out of my hand. My Father which gave them me, is greater than all; and no man is able to pluck them out of my Father's hand. I and my Father are one." Our Lord himself has spoken it, and it is true, not one of his own shall ever perish! Any person who is truly saved, born again by almighty grace, a true believer in the Lord Jesus Christ is eternally secure in the hands of Christ.
To be sure, there are many who make a profession of faith in Christ, reform their lives, and to all outward appearance seem to be saved people that do fall from grace and perish. But the Apostle John tells us that those who fall away, forsake the gospel, and perish in their sins were never truly saved. He says in I John 2:19, "They went out from us, but THEY WERE NOT OF US: for if they had been of us, they would no doubt have continued with us: but they went out, that they might be made manifest that they were not all of us." Any man who leaves Christ, never truly knew Christ.
I readily grant that if our salvation were in any measure dependent upon us, we would most certainly be lost and without hope. But salvation is entirely the work of God's grace and power in Christ. And since it is the work of God, it cannot be destroyed. Solomon said, "I know that whatsoever God doeth, it shall be done forever; nothing can be put to it, nor anything taken from it: and God doeth it, that men may fear before him" (Eccles. 3:14). Paul said, "He which hath begun a good work in you will perform it until the day of Jesus Christ"(Phil. 1:6).
Are you one of the Lord's sheep? Are you a true believer? Have you heard the Savior's voice calling you to himself? Has he given you eternal life? Do you follow him in true faith? if so, you are one of his chosen, redeemed, saved sheep. You have eternal life. And you shall never perish. There are many things to give us comfort and confidence regarding the security of our salvation in Christ. THE PURPOSE OF GOD secures the salvation of all his elect. He said, "I will be their God, and they shall be my people." If one of the chosen number could be lost, God's eternal purpose would be overturned. THE PROMISE OF GOD demands our security in Christ. He said, "I will never leave thee, nor forsake thee." THE BLOOD OF CHRIST requires the eternal salvation of all his redeemed ones. He said, "I am come that they might have life, and that they might have it more abundantly. I am the Good Shepherd: the Good Shepherd giveth his life for the sheep." But if even one of those sheep for which he dieds which he purchased with his own blood, perishes at last, then his blood would be shed in vain; and that cannot be! THE SATISFACTION OF CHRIST demands that all his people be preserved unto eternal glory. If one of those for whom he suffered and died were to perish at last, he could not be satisfied. His cross would be discovered a miscarriage. But that cannot be. It is written, "He shall see of the travail of his soul, and shall be satisfied." THE WORK OF THE HOLY SPIRIT secures the everlasting preservation of every true believer. We are "sealed (or preserved) with that Holy Spirit of promise, which is the earnest of our inheritance until the redemption of the purchased possession, unto the praise of his glory."
This is our assurance and security in Christ. We do not in any way trust in ourselves. But we do trust the Lord our God. The faithfulness of God, the blood of Christ, the intercession of Christ, and the power of the Holy Spirit assure us that none of Christ's sheep shall ever perish.