Helps to Full Assurance
1 John 5:13
These things have I written to you that believe on the name of the Son of God; that you may know that you have eternal life…


I. TO WHOM WAS THIS WRITTEN? It is important to observe the direction of a letter; for I may be reading a communication meant for somebody else, and if it should contain good tidings, I may be deceiving myself by appropriating the news.

1. This Epistle, and this particular text in it, were written for all those who believe on the name of the Son of God.

2. To unbelievers this text is not written: it is for all who trust in Jesus; but it is for none beside. If you inquire why it is not addressed to unbelievers, I answer, simply because it would be preposterous to wish men to be assured of that which is not true.

3. We may gather from this address being made to all the people of God and to none beside, that there are some believers in the world, and true believers too, who do not know that they have eternal life. Again, a large number of Christ's people who may be perfectly sound in the doctrinal view of the nature of this life do not know that they possess it at this present moment if they are believers. We want children of God who believe in Jesus to feel that the holy flame which kindles their lamp today is the same fire which will shine forth before the throne of God forever; they have begun already to exercise those holy emotions of delight and joy which will be their heaven: they already possess in measure those perceptions and faculties which will be theirs in glory. Yet again, there are some Christians who believe all this, and are perfectly right in theory, but yet they each one cry, "I want to know that I have eternal life. I want a fuller assurance of salvation than I have already obtained." That is also our desire for you.

II. TO WHAT END JOHN HAS WRITTEN.

1. When he says, "that ye may know that ye have eternal life," I think his first meaning is that you may know that everybody who believes in Jesus Christ has eternal life. You are not to form an opinion upon it, but to believe it, for the Lord hath said it.

2. I think that John in this passage meant, and we will consider him as meaning, something more — namely, he would have us know that we personally have eternal life by having us know that we do personally believe in Jesus. Rationally a living man should know that he is alive. No man should give sleep to his eyes or slumber to his eyelids while he has a doubt about his eternal state. It is possible, and it is very desirable; for when a man knows that he has eternal life, what a comfort it is to him! What gratitude it produces in his spirit! How it helps him to live above the world! And it is our duty to obtain full assurance. We should not have been commanded to give diligence to make our calling and election sure if it were not right for us to be sure.

III. WHAT HAS JOHN SAID IN THIS EPISTLE WHICH CONDUCES TO OUR FULL ASSURANCE? How does he help us to know that we are believers, and consequently to know that we have eternal life?

1. You will find, first, that John mentions as an evidence truthful dealing with God, in faith and confession of sin. Naturally men walk in darkness or falsehood towards God; but when we have believed in Jesus we come to walk in the light of truth. Read in the first chapter of the Epistle from verse 6 to 9.

2. Next, John gives us obedience as a test of the child of God. Look to the second chapter, and begin to read at the third verse.

3. Follow me as I call attention, next, to the evidence of love in the heart. In the second chapter read at the ninth verse. Then go on to the fourteenth verse of the third chapter. This will greatly help you to decide your case. Do you hate anybody? Are you seeking revenge? Then you are not dwelling in the light; you are of Cain and not of Christ.

4. Next to that comes separation from the world. Read in the second chapter at the fifteenth verse. This is backed up by the first verse of the third chapter. Thus slander, abuse, and other forms of persecution may turn to your comfort by showing that you are of that sect which is everywhere spoken against.

5. Next to that, in the second chapter, we have the evidence of continuance in the faith. "And the world passeth away, and the lust," etc.

6. The next evidence you will find in the third chapter, the third verse, namely, purification. Do you every day endeavour to keep clear of sin; and, when you have sinned, do you at night go with bitter repentance to God, and beg to be delivered from it?

7. Again, in the twenty-first verse of the third chapter, we meet with another blessed evidence, and that is a clear conscience.

8. Furthermore, we find an evidence in answer to prayer: "And whatsoever we ask, we receive of Him, because we keep His commandments, and do those things that are pleasing in His sight."

9. Adherence to the truth is another help to full assurance. Read the whole fourth chapter. If you bear witness to the truth, the truth bears witness to you. Blessed are those who are not removed from the hope of their calling.

10. One of the best evidences of true faith, and one of the best helps to full assurance, is a holy familiarity with God. Read in the fourth chapter the sixteenth verse. When you have no longer that slavish fear which makes you stand back, but that childlike confidence which draws you nearer and yet nearer unto God, then are you His child. He who can call God his exceeding joy is among the living in Zion.

IV. THE APPENDIX TO JOHN'S DESIGN. "That ye may believe on the name of the Son of God." I think he means this — you are never to get into such a state that you say, "I have eternal life, and therefore I need not trust simply in the blood and righteousness of Jesus Christ. Years ago I was born again, and so I can now live without the daily exercise of faith." "No," says the apostle, "I am writing this to believers, and I tell them that while they may have full assurance, it cannot be a substitute for habitual faith in the Lord Jesus." Every vessel, whether it be a great flagon or a little cup, must hang upon the one nail which is fastened in a sure place. If you get from Jesus, you wander into a land of darkness and of the shadow of death.

(C. H. Spurgeon.)



Parallel Verses
KJV: These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God.

WEB: These things I have written to you who believe in the name of the Son of God, that you may know that you have eternal life, and that you may continue to believe in the name of the Son of God.




Eternal Life
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