1 John 5:2-3

Verse 2. By this we know that we love the children of God, etc. This is repeating the same truth in another form. "As it is universally true that if we love him who has begotten us, we shall also love his children, or our Christian brethren, so it is true also that if we love his children it will follow that we love him." In other places, the apostle says that we may know that we love God if we love those who bear his image, 1Jn 3:14. He here says, that there is another way of determining what we are. We may have undoubted evidence that we love God, and from that, as the basis of an argument, we may infer that we have true love to his children. Of the fact that we may have evidence that we love God, apart from that which we derive from our love to his children, there can be no doubt. We may be conscious of it; we may find pleasure in meditating on his perfections; we may feel sure that we are moved to obey him by true attachment to him, as a child may in reference to a father. But, it may be asked, how can it be inferred from this that we truly love his children? Is it not more easy to ascertain this of itself than it ia to determine whether we love God? Comp. 1Jn 4:20. To this it may be answered, that we may love Christians from many motives: we may love them as personal friends; we may love them because they belong to our church, or sect, or party; we may love them because they are naturally amiable: but the apostle says here, that when we are conscious that an attachment does exist towards Christians, we may ascertain that it is genuine, or that it does not proceed from any improper motive, by the fact that we love God. We shall then love him as his children, whatever other grounds of affection there may be towards them.

And keep his commandments. Jn 14:16
Verse 3. For this is the love of God, that we keep his commandments. This constitutes true love; this furnishes the evidence of it. And his commandments are not grievous. Greek, heavy--βαρειαι; that is, difficult to be borne as a burden. See Mt 11:30. The meaning is, that his laws are not unreasonable; the duties which he requires are not beyond our ability; his government is not oppressive. It is easy to obey God when the heart is right; and those who endeavour in sincerity to keep his commandments do not complain that they are hard. All complaints of this kind come from those who are not disposed to keep his commandments. They, indeed, object that his laws are unreasonable; that they impose improper restraints; that they are not easily complied with; and that the Divine government is one of severity and injustice. But no such complaints come from true Christians. They find his service easier than the service of sin, and the laws of God more mild and easy to be complied with than were those of fashion and honour, which they once endeavoured to obey. The service of God is freedom; the service of the world is bondage. No man ever yet heard a true Christian say that the laws of God, requiring him to lead a holy life, were stern and "grievous." But who has not felt this in regard to the inexorable laws of sin? What votary of the world would not say this if he spoke his real sentiments? Comp. Notes, Jn 8:32.

(b) "that we keep" Jn 14:15,21 (c) "not grievous" Ps 119:45, Mt 11:30
Copyright information for Barnes