Verse 6. - Every one that abideth in Christ ipso facto sinneth not; for, if he sins, he ceases to abide in him. Just in so far as he abides, he does not sin. Or it may mean that be who abides in Christ cannot deliberately and habitually sin. But then would not St. John have written, "He that abideth in Christ abideth not in sin"? But the main difficulty is in the second half. In what sense is it true that every one that sinneth hath not seen Christ? In the main two explanations are given.

(1) The Greek perfect expresses the present and permanent result of a past action, and is often equivalent to a present. No doubt; and all would be easy if we had only to deal with ὤγνωκε, which means, "he hath come to know," equivalent to "he knoweth." But does ἑώρακε ever mean "he seeth," as Alford suggests as the best rendering for a version? If St. John simply means that whoever sins thereby ceases to see and know Christ, he would hardly express himself thus.

(2) The fact of the man's sinning proves that his perception and knowledge have been imperfect, if not superficial, or even imaginary; just as the fact of Christians leaving the Church proves that they never were really members of it (1 John 2:19). This explanation is preferable. In verse 2 we were told that seeing God will make us like God; and similarly, to see and know Christ make us like Christ. Whoever is unlike Christ, to that extent has not seen nor come to know him. The best of us, it may be, have seen but the hem of his garment.

3:3-10 The sons of God know that their Lord is of purer eyes than to allow any thing unholy and impure to dwell with him. It is the hope of hypocrites, not of the sons of God, that makes allowance for gratifying impure desires and lusts. May we be followers of him as his dear children, thus show our sense of his unspeakable mercy, and express that obedient, grateful, humble mind which becomes us. Sin is the rejecting the Divine law. In him, that is, in Christ, was no sin. All the sinless weaknesses that were consequences of the fall, he took; that is, all those infirmities of mind or body which subject man to suffering, and expose him to temptation. But our moral infirmities, our proneness to sin, he had not. He that abides in Christ, continues not in the practice of sin. Renouncing sin is the great proof of spiritual union with, continuance in, and saving knowledge of the Lord Christ. Beware of self-deceit. He that doeth righteousness is righteous, and to be a follower of Christ, shows an interest by faith in his obedience and sufferings. But a man cannot act like the devil, and at the same time be a disciple of Christ Jesus. Let us not serve or indulge what the Son of God came to destroy. To be born of God is to be inwardly renewed by the power of the Spirit of God. Renewing grace is an abiding principle. Religion is not an art, a matter of dexterity and skill, but a new nature. And the regenerate person cannot sin as he did before he was born of God, and as others do who are not born again. There is that light in his mind, which shows him the evil and malignity of sin. There is that bias upon his heart, which disposes him to loathe and hate sin. There is the spiritual principle that opposes sinful acts. And there is repentance for sin, if committed. It goes against him to sin with forethought. The children of God and the children of the devil have their distinct characters. The seed of the serpent are known by neglect of religion, and by their hating real Christians. He only is righteous before God, as a justified believer, who is taught and disposed to righteousness by the Holy Spirit. In this the children of God are manifest, and the children of the devil. May all professors of the gospel lay these truths to heart, and try themselves by them.Whosoever abideth in him,.... As the branch in the vine, deriving all light, life, grace, holiness, wisdom, strength, joy, peace, and comfort from Christ; or dwells in him by faith, enjoys communion with him as a fruit of union to him; and stands fast in him, being rooted and grounded in him, and abides by him, his truths and ordinances, takes up his rest, and places his security in him, and perseveres through him:

sinneth not; not that he has no sin in him, or lives without sin, but he does not live in sin, nor give up himself to a vicious course of life; for this would be inconsistent with his dwelling in Christ, and enjoying communion with him:

whosoever sinneth; which is not to be understood of a single action, but of a course of sinning:

hath not seen him, neither known him; that is, he has never seen Christ with an eye of faith; he has never truly and spiritually seen the glory, beauty, fulness, and suitableness of Christ, his need, and the worth of him; he has never seen him so as to enjoy him, and have communion with him; for what communion hath Christ with Belial, or light with darkness, or righteousness with unrighteousness? 2 Corinthians 6:14, nor has he ever savingly known him, or been experimentally acquainted with him; for though he may profess to know him in words, he denies him in works.