Who is he ... - Where is there one who can pretend to have obtained a victory over the world, except he who believes in the Saviour? All else are worldly, and are governed by worldly aims and principles. It is true that a man may gain a victory over one worldly passion; he may subdue some one evil propensity; he may abandon the "happy" circle, may break away from habits of profaneness, may leave the company of the unprincipled and polluted; but still, unless he has faith in the Son of God, the spirit of the world will reign supreme in his soul in some form. The appeal which John so confidently made in his time may be as confidently made now. we may ask, as he did, where is there one who shows that he has obtained a complete victory over the world, except the true Christian? Where is there one whose end and aim is not the present life? Where is there one who shows that all his purposes in regard to this world are made subordinate to the world to come?

There are those now, as there were then, who break away from one form of sin, and from one circle of sinful companions; there are those who change the ardent passions of youth for the soberness of middle or advanced life there are those who see the folly of profaneness, and of gaiety, and intemperance; there are those who are disappointed in some scheme of ambition, and who withdraw from political conflicts; there are those who are satiated with pageantry, and who, oppressed with the cares of state, as Diocletian and Charles V were, retire from public life; and there are those whose hearts are crushed and broken by losses, and by the death, or what is worse than death, by the ingratitude of their children, and who cease to cherish the fond hope that their family will be honored, and their name perpetuated in those whom they tenderly loved - but still there is no victory over the world. Their deep dejection, their sadness, their brokenness of spirit, their lamentations, and their want of cheerfulness, all show that the spirit of the world still reigns in their hearts.

If the calamities which have come upon them could be withdrawn; if the days of prosperity could be restored, they would show as much of the spirit of the world as ever they did, and would pursue its follies and its vanities as greedily as they had done before. Not many years or months elapse before the worldly mother who has followed one daughter to the grave, will introduce another into the frivolous world with all the brilliancy which fashion prescribes; not long will a worldly father mourn over the death of a son before, in the whirl of business and the exciting scenes of ambition, he will show that his heart is as much wedded to the world as it ever was. If such sorrows and disappointments conduct to the Saviour, as they sometimes do; if they lead the troubled mind to seek peace in his blood, and support in the hope of heaven, then a real victory is obtained over the world; and then, when the hand of affliction is withdrawn, it is seen that there has been a work of grace in the soul that has effectually changed all its feelings, and secured a triumph that shall be eternal.

He that believeth that Jesus is the Son of God? - That he is the promised Messiah, that he came by a supernatural generation; and, although truly man, came not by man, but by the power of the Holy Ghost in the womb of the Virgin Mary. The person who believes this has the privilege of applying to the Lord for the benefits of the incarnation and passion of Jesus Christ, and receives the blessings which the Jews cannot have, because they believe not the Divine mission of Christ.

Who is he that overcometh the world,.... This question carries in it a strong affirmation, that no other person is the conqueror of the world:

but he that believeth that Jesus is the Son of God? and this points out what that faith is which obtains the victory over the world; and shows that it is not that trust and confidence which has a man's self, or any mere creature, thing, or person, for its object, but only Jesus Christ, and that as he is the Son of God; and which is not a mere assent to such a proposition, to which devils and unregenerate persons may assent, and do; but it is a seeing of the Son in the glory, fulness, and suitableness of his person, office, and grace; a going to him, being drawn by the Father; and a living upon him as the Son of God, and trusting in him for life, righteousness, and salvation: and this shows, that the victory over the world is not owing to faith itself, but to its object Christ, who has overcome it, and makes true believers in him more than conquerors over it.

He that overcometh (ὁ νικῶν)

The article with the participle denoting what is habitual; one who leads a life of victory over the world.

{7} Who is he that overcometh the world, but he that believeth that Jesus is the Son of God?

(7) Moreover he declares two things, the one, what true faith is, that is, that which rests on Jesus Christ the Son of God alone: on which follows the other, that is, that this strength is not proper to faith, but by faith as an instrument is drawn from Jesus Christ the Son of God.

5:5 Who is he that overcometh the world? Only the men of faith; those who believe upon Jesus Christ.

5:5 Who is he that overcometh the world - That is superior to all worldly care, desire, fear? Every believer, and none else. The seventh verse 1Jo 5:7 (usually so reckoned) is a brief recapitulation of all which has been before advanced concerning the Father, the Son, and the Spirit. It is cited, in conjunction with the sixth and eighth, 1Jo 5:6,8 by Tertullian, Cyprian, and an uninterrupted train of Fathers. And, indeed, what the sun is in the world, what the heart is in a man, what the needle is in the mariner's compass, this verse is in the epistle. By this the sixth, eighth, and ninth verse s 1Jo 5:6,8,9 are indissolubly connected; as will be evident, beyond all contradiction, when they are accurately considered.

5. Who-"Who" else "but he that believeth that Jesus is the Son of God:" "the Christ" (1Jo 5:1)? Confirming, by a triumphant question defying all contradiction, as an undeniable fact, 1Jo 5:4, that the victory which overcomes the world is faith. For it is by believing: that we are made one with Jesus the Son of God, so that we partake of His victory over the world, and have dwelling in us One greater than he who is in the world (1Jo 4:4). "Survey the whole world, and show me even one of whom it can be affirmed with truth that he overcomes the world, who is not a Christian, and endowed with this faith" [Episcopius in Alford].

5:1-5 True love for the people of God, may be distinguished from natural kindness or party attachments, by its being united with the love of God, and obedience to his commands. The same Holy Spirit that taught the love, will have taught obedience also; and that man cannot truly love the children of God, who, by habit, commits sin or neglects known duty. As God's commands are holy, just, and good rules of liberty and happiness, so those who are born of God and love him, do not count them grievous, but lament that they cannot serve him more perfectly. Self-denial is required, but true Christians have a principle which carries them above all hinderances. Though the conflict often is sharp, and the regenerate may be cast down, yet he will rise up and renew his combat with resolution. But all, except believers in Christ, are enslaved in some respect or other, to the customs, opinions, or interests of the world. Faith is the cause of victory, the means, the instrument, the spiritual armour by which we overcome. In and by faith we cleave to Christ, in contempt of, and in opposition to the world. Faith sanctifies the heart, and purifies it from those sensual lusts by which the world obtains sway and dominion over souls. It has the indwelling Spirit of grace, which is greater than he who dwells in the world. The real Christian overcomes the world by faith; he sees, in and by the life and conduct of the Lord Jesus on earth, that this world is to be renounced and overcome. He cannot be satisfied with this world, but looks beyond it, and is still tending, striving, and pressing toward heaven. We must all, after Christ's example, overcome the world, or it will overcome us to our ruin.