1 John 4:12-15

Verse 12. No man hath seen God at any time. Jn 1:18, where the same declaration occurs. The statement seems to be made here in order to introduce a remark to show in what way we may know that we have any true knowledge of God. The idea is, "He has never indeed been seen by mortal eyes. We are not then, to expect to become acquainted with what he is in that way. But there is a method by which we may be assured that we have a true knowledge of him, and that is, by evidence that we love another, and by the presence of his Spirit in our hearts. We cannot become acquainted with him by sight, but we may by love." If we love one another, God dwelleth in us. Though we cannot see him, yet there is a way by which we may be assured that he is near us, and that he even dwells in us. That way is by the exercise of love. Comp. Jn 14:23, Jn 14:24.

And his love is perfected in us. Is carried out to completion. That is, our love for each other is the proper exponent of love to him reigning in our hearts. The idea here is not that we are absolutely perfect, or even that our love is perfect, whatever may be true on those points, but that this love to others is the proper carrying out of our love towards him; that is, without this our love to him would not have accomplished what it was adapted and designed to do. Unless it produced this effect, it would be defective or incomplete. Compare 1Jn 4:17. The general sense is this: "We claim to have the love of God in our hearts, or that we are influenced and controlled by love. But however high and exalted that may seem to be as exercised toward God, it would be defective; it would not exert a fair influence over us, unless it led us to love our Christian brethren. It would be like the love which we might profess to have for a father, if it did not lead us to love our brothers and sisters. True love will diffuse itself over all who come within its range, and will thus become complete and entire." This the it passage, therefore, cannot be adduced to demonstrate doctrine of sinless perfection, or to prove that Christians are ever absolutely perfect in this life. It proves only that love to God is not complete, or fully developed, unless it leads those who profess to have to love each other. Job 1:1. On the meaning of the Greek word here used, (τελειοω,) Php 3:12. Heb 2:10.

(f) "No man" 1Timm 6:16 (g) "perfected" 1Cor 13:13
Verse 13. Hereby know we that we dwell in him. Here is another, or an additional evidence of it.

Because he hath given us of his Spirit. He has imparted the influences of that Spirit to our souls, producing "love, joy, peace, long-suffering, gentleness, goodness, faith," etc., Gal 5:22,23. It was one of the promises which the Lord Jesus made to his disciples that he would send the Holy Spirit to be with them after he should be withdrawn from them, (Jn 14:16,17,26, Jn 15:26, 16:7;) and one of the clearest evidences which we can have that we are the children of God, is derived from the influences of that Spirit on our hearts. See this sentiment illustrated in the Rom 8:16.

(h) "Hereby" Jn 14:20, 1Jn 3:24
Verse 14. And we have seen. 1Jn 1:1.

And do testify. 1Jn 1:3. That is, we who are apostles bear witness to you of this great truth, that God has sent his Son to be a Saviour. Comp. Jn 20:31. The reason why this is referred to here is not quite apparent, but the train of thought in this passage would seem to be this: The writer is discoursing of the love of God, and of its manifestation in the gift of the Saviour, and of the proper influence which it should have on us. Struck with the greatness and importance of the subject, his mind adverts to the evidence on which what he was saying rested--the evidence that the Father had really thus manifested his love. That evidence he repeats, that he had actually seen him who had been sent, and had the clearest demonstration that what he deemed so important had really occurred.
Verse 15. Whosoever shall confess that Jesus is the Son of God. In the true sense, and from the heart. This will always prove that a man is a Christian. But the passage cannot mean that if he merely says so in words, or if he does it insincerely, or without any proper sense of the truth, it will prove that he is a Christian. On the meaning of the sentiment here expressed, 1Jn 4:2. Comp. Rom 10:10.

(a) "Whosoever" Rom 10:9
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