The True Gospel
Lesson 6: Assurance of Salvation


A Christian's assurance of salvation rests on two things: (1) the reliability of God's promise to save all who believe, (2) the evidence that the Christian has truly believed.

The first cornerstone of assurance—the reliability of God's promise to save all who believe—is affirmed by the doctrine known as "eternal security" or "the perseverance of the saints." The reliability of this promise is a corollary of the power, love, and truthfulness of God.

The power of God. To comfort His disciples lest they fear for their eternal security, Jesus taught,

John 10:28-29

We are secure because we rest in the hands of Jesus. His power is greater than the power of any other who might seek to rob us of our salvation. "Man" is italicized because it is not in the original. Our chief enemy is not a man but Satan, and the verse teaches that we are safe even from Satan's power. "Neither shall any [including Satan] pluck them out of my hand."

We are not only in Jesus' hand, but also in the Father's. How is that possible? Jesus' answer is,

John 10:30

In other words, they are "one God." The persons of the Trinity, each being infinite in power and knowledge, cannot do otherwise than work together in perfect cooperation. Thus, we are held jointly by the Father and the Son. The wording suggests that when the Father gave us to the Son, He Himself did not let go of us. We are in the hands of both.

Jude 24, quoted in the previous lesson, also directs us to see the power of God—not His power against our enemies so much as His power against our own weakness and frailty. Once we are in the hand of God, no enemy can take us away, and also we cannot remove ourselves. We cannot muster enough determination and strength to get out.

The love of God. Although we as human parents lack the love and patience of God, we do not disown our children should they happen to disobey us. If we did, the streets would be full of homeless urchins. Instead, we persist as long as possible in every measure that might help our children do right.

What we can do for our children is limited, however. But what God can do for His children is unlimited. There is no sin that a wayward child of God can commit that his infinite, all-powerful Father cannot correct and eliminate by means of chastisement. Thus, since God our Father is perfect in love (Psa. 103:13; Heb. 12:6), He will, if we do wrong, chasten us rather than eject us from His family. We cannot do anything foolish or sinful enough to forfeit our salvation.

That the love of God guarantees our eternal security is taught also in the book of Philippians.

Philippians 1:6

In other words, God does not stop His projects when they are half-finished. When He is done fashioning us to His liking, we will all be images of Christ (Rom. 8:29; 2 Cor. 3:18). Will we then be all exactly alike? No, that would be a rather dull prospect. Christ is infinite God. Therefore, within Himself He is the fulfillment of all the shades and types of human potential. Therefore, we can be like Christ and still be different from each other. Look at the wonderful diversity in creation—at the many odd kinds of animals and flying beasts. God loves variety.

The truthfulness of God. Our eternal security is guaranteed not only by the power and love of God, but also by His perfect truthfulness. The impossibility that God would ever renege on a promise is stressed in the following texts:

2 Timothy 1:12

1 Peter 4:19

Hebrews 6:10-12, 17-19

Hebrews 10:23

Yet though a Christian understands that God will save all who believe, he cannot have assurance of salvation unless he knows that his own belief is authentic. As we have seen, faith can be genuine and vital, or it can be false and dead. The evidence of true faith is therefore the second cornerstone of assurance.

Past decision. How can a man know that he is one of the sheep in the hand of Jesus? Too often in churches today, people hear the wrong answer. They are told that a man can be sure of his salvation if at some definite time in the past, he accepted Christ as his Savior.

In fundamentalist circles, accepting Christ means to come forward during the invitation at the close of a sermon, to listen politely as a personal worker reads the verses known as the Romans Road, and then to recite a brief prayer asking God for forgiveness and salvation through Christ. The personal worker may advise the new convert to write down in his Bible the date and circumstances of this prayer, so that in the future he will not be tempted to doubt his salvation.

It is true, of course, that a person cannot be saved without making a definite decision for Christ. Therefore, a Christian does draw some assurance of salvation from a distinct memory of such a decision. But there are two flaws in the teaching that such a decision is the primary basis of assurance.

The erroneous teaching that assurance rests on a past decision entails at least two dangers.

The four Biblical tests. The purpose of 1 John is stated near the end of the book.

1 John 5:13

We see that 1 John was written to answer the question, how may we know that we have eternal life? The book offers four practical tests.

  1. Obedience to Jesus' commandments.

1 John 2:3, 5

Some down-to-earth questions will help us apply this test to our own lives. Since we cannot keep Jesus' commandments unless we know them, we should ask ourselves, am I abiding in the Word of God?

1 John 2:24

Do I know God's Word? Do I treasure it? Do I study it? Do I meditate upon its meaning and seek to apply its teaching to my daily walk? Do I listen carefully to preaching? For anyone entitled to assurance of salvation, the answer to all these questions is, yes.

In 1 John 2:6, the thought of preceding verses 3 and 5 is refashioned in new language. The idea of keeping the commandments of Christ is expressed as walking even as He walked.

1 John 2:6

How did Christ walk? He walked according to His Father's will. As He confided to His disciples,

John 4:34

See also John 5:30 and John 6:38. The contrary of doing the will of God is being controlled by the lusts of the world.

1 John 2:15-17

Am I denying these lusts and walking separate from worldly attitudes and speech and practices and amusements? An answer of "yes" is evidence of true faith.

  2. Freedom from sin.

1 John 3:9

Certain Holiness groups infer from this and similar verses that God is willing to grant the believer a second work of grace which will lift him to sinless perfection. But John does not mean that a normal Christian lives on a cloud floating high above the sin and filth of this world. If sinless perfection were possible, surely the likeliest believer to attain such an exalted state would be the beloved disciple himself. Yet he says,

1 John 1:8

John explicitly includes himself among those who must admit that they now have sin. The possibility that any Christian may sin is implied a few verses later.

1 John 2:1

Here, then, we find a contrast between every believer, who is liable to sin, and his sinless Advocate. Because the believer has an advocate in Christ, he need not fear that sin will bring the loss of his salvation. Every confessed sin will certainly be forgiven.

1 John 1:9

It is true not only that all believers have sin, but also that a believer can fall into a sin so grievous that God must take his life (1 John 5:16-17, quoted in the last lesson). If his offense is less serious, it is the privilege of fellow believers to pray for the fallen brother, beseeching God to deal with him not in wrath but in grace, so that he might live and become useful again in God's service (same reference).

What then does 1 John 3:9 mean when it says, "Whosoever is born of God doth not commit sin"? An equally strong assertion to the same effect comes later in the book.

1 John 5:18

The proper interpretation of these verse hinges on the verb tenses. In 1 John 2:1, quoted above, the verbs "sin" are in the aorist tense, implying a single act of sin. But the verbs "doth commit" and "sin" in 1 John 3:9 and "sinneth" in 1 John 5:18 (as well as "sinneth" and "sinneth" in 1 John 3:6 and "committeth" in 1 John 3:8) are in the present tense, implying continual sinning. John is teaching that sin is not the habitual practice of anyone entitled to call himself a Christian—that a true Christian has abandoned a life controlled by sin.

In practical terms, how may we apply this second test to our own lives? Perhaps the most helpful question is this: How do I react after I have committed a sin? Am I troubled by a bad conscience? Do I sense the convicting presence of the Holy Spirit? Do I try to stop sinning? Do I eventually have victory over the sin?

It might be helpful to see what John means by sin. He says,

1 John 5:17

He means that sin is anything arising from an unrighteous motive. Not all of the blunders in our speech and conduct are rooted in unrighteousness. Many are simply the outgrowth of human imperfection. We may forget. We may fail to think ahead. We may not have enough understanding of a situation to act appropriately. We may lack ability to succeed in what we set out to do. But persistent human imperfection is not what John means by continual sinning. Rather, continual sinning is habitual failure to obey God.

A professing Christian who sins continually will probably get worse and worse until he falls into one of the grievous sins listed in 1 Corinthians.

1 Corinthians 5:11

1 Corinthians 6:9-10

In contrast, a true Christian is not getting worse and worse, but is at some stage of growth. His growth may be uneven, especially if he backslides from time to time, but over a span of years, there is evident progress. Thus, another way to apply the second test is simply to ask, Am I growing as a Christian? A young Christian is far from perfect, because he is only a spiritual babe (Heb. 5:13), but if he walks steadily onward in the Spirit, he will soon attain the holiness characteristic of a mature believer. Every Christian, young or old, should be striving to move beyond his present level of maturity.

  3. Love of the brethren.

1 John 2:10-11

1 John 3:14

The third test is so important that John comes back to it again and again. If we love our brothers in Christ, none of the following questions will require us to say, yes. Do I have a deep-seated dislike or resentment toward anyone in the church? Do I bear enmity toward anyone? Is there anyone I cannot look at without my face hardening and a contemptuous feeling rising in my heart? Is there anyone I go the other way to avoid? Is there anyone I cut down in conversation with others? Is there anyone I lash out against or try to hurt by either secret opposition or direct verbal attack? Is there anyone I would like to see dead?

Sometimes we may find ourselves divided from other Christians who do not like our convictions on matters of principle. But even then we must do everything in our power to preserve peace.

Romans 12:18

That is, we must not seek a fight for its own sake. But if conflict is unavoidable, we must speak the truth only in love, and we must refrain from attacking personalities we do not like. We must desire good for those who oppose us, not harm.

Another practical way of applying the third test is to ask whether we enjoy going to church. If we really love our brothers in Christ, we would rather be among them than at home watching TV or at the beach or anywhere else devoid of Christian fellowship.

  4. Confession that Jesus is the Son of God.

1 John 2:23

1 John 4:15

Many people in mainline churches today might imagine that they meet the first three tests of salvation. After all, they lead respectable lives, and they feel stuffed full of love for everybody. But they cannot easily delude themselves that they meet the fourth test. Although they may concede that Jesus was an exceptionally good man, or even that He was a special messenger from God, they do not believe that He was really God Almighty in the flesh.

The denial of Christ by these self-satisfied churchgoers is the evil effect of the religious philosophy known as modernism. By trimming away Biblical accounts of the supernatural, modernism reduces Christianity to a system of ethical principles. A modernist may retain a belief in God and heaven. But, branding them as superstitions, he rejects recent creation, the Flood, the Exodus from Egypt, the giving of the law at Mt. Sinai, the miracles of Elisha and Elijah, Jesus' Virgin Birth, and the Resurrection. From a modernist's perspective, the doctrine that Jesus is the Son of God is a mythical rather than a factual conception.