THE DOCTRINE OF THE SECURITY OF THE BELIEVER
Another study in the area of redemption is the doctrine of the security of the believer. Reformation theologians called it the doctrine of perseverance of the saints. Actually, it could be better thought of as the doctrine of preservation and perseverance. From God's side, it is preservation; from man's side it is perseverance. If one is absent, they are both absent. God clearly promises to preserve His sheep (Psalm 121), but He also admonishes them to make sure they persevere (Hebrews 10:23).

Can a saved person ever be lost? There are different views. 1) One view is salvation may be forfeited by a mortal sin, such as murder and blasphemy. 2) Another view is once saved you are always saved meaning no matter how you live after believing in Jesus you are saved 3) Another is they believe any saved person may be lost by sin or apostasy.
The biblical view shows that the elect will persevere because God will preserve them.

There is a distinction between a mere believer, one who has simply embraced Christianity as his religion, and an elect believer. There are people who make professions and endure for a time, as illustrated in the Parable of the Sower. Some received the Word and acted on it, but did not endure (Matthew 13). Jesus said, "Every branch in me that beareth not fruit he [the Father] taketh away" (John 15:2). He said they were in Him. Paul said in 1 Timothy 4:1, "Now the Spirit speaketh expressly, that in the latter times some shall depart from the faith, giving heed to seducing spirits, and doctrines of demons." Notice that they were in "the faith." But there are some who profess the Christian faith who do not endure to the end. See 2 Timothy 2:20-22; Hebrews 6:4-8; 10:26-31.

The Scriptures show there is an elect group who will endure: a remnant according to the election of grace (Romans 11:5). Paul said in Romans 11:7, "The election hath obtained it, and the rest were blinded." According to 1 Peter 1:2-5 the elect will be preserved. He spoke of those "who are kept by the power of God through faith unto salvation ready to be revealed in the last time" (verse 5). Jesus said the days of the great tribulation would be shortened for the elect's sake (Matthew 24:22). Paul said, "I endure all things for the elect's sakes, that they may also obtain the salvation which is in Christ Jesus with eternal glory" (2 Timothy 2:10).

The elect will persevere because they are preserved by God. "To them that are sanctified by God the Father, and preserved in Jesus Christ" (Jude 1). The Christian has been predestinated and "sealed unto the day of redemption" (Ephesians 4:30; 1:5). Jesus said, "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" (John 10:27-29).

The elect by God's grace will overcome, even if they temporarily stumble and fall away. James 5:19-20. 19 Brethren, if anyone among you wanders from the truth, and someone turns him back, 20 let him know that he who turns a sinner from the error of his way will save a soul from death and cover a multitude of sins. Peter denied Jesus, yet repented, and as one of God's elect was restored. We prove we are one of the elect by our faithful obedience and enduring to the end. If we sin we confess our sin to stay in right standing with God (1 John 1; 7-9) (John 6:39; 17:2; Romans 8:29-30; 1 Corinthians 1:7-9; Philippians 1:6; 1 Thessalonians 5:23-24; 2 Thessalonians 3:3; Hebrews 6:9; 1 Peter 1:2-5).

Why do the Scriptures warn against the dangers of sin if the elect will be saved anyway? The admonitions and warnings are the means by which God secures the true believer's perseverance. "Wherefore the rather, brethren, give diligence to make your calling and election sure: for if ye do these things, ye shall never fall" (2 Peter 1:10). Jesus said in Revelation 3:11, "Behold, I come quickly: hold that fast which thou hast, that no man take thy crown." Paul told the Philippians to "work out your own salvation with fear and trembling" (2:12). Even the Apostle Paul said, "I keep under my body, and bring it into subjection: lest that by any means, when I have preached to others, I myself should be a castaway" (1 Corinthians 9:27). Edited. Shared.

God willing, more will be posted soon. All glory to Jesus alone.