Verse 5. - What other way is there of conquering the world? And how can he who believes fail? Belief in Christ unites us to him, and gives us a share in his victories; and he has overcome the world (John 16:33).

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.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.