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2 By this we know He briefly shows in these words what true love is, even that which is towards God. He has hitherto taught us that there is never a true love to God, except when our brethren are also loved; for this is ever its effect. But he now teaches us that men are rightly and duly loved, when God holds the primacy. And it is a necessary definition; for it often happens, that we love men apart from God, as unholy and carnal friendships regard only private advantages or some other vanishing objects. As, then, he had referred first to the effect, so he now refers to the cause; for his purpose is to shew that mutual love ought to be in such a way cultivated that God may be honored.

To the love of God he joins the keeping of the law, and justly so; for when we love God as our Father and Lord, reverence must necessarily be connected with love. Besides, God cannot be separated from himself. As, then, he is the fountain of all righteousness and equity, he who loves him must necessarily have his heart prepared to render obedience to righteousness. The love of God, then, is not idle or inactive. ⁹²⁹²     The love of God,” here clearly means love to God: it is the love of which God is the object. — Ed.

But from this passage we also learn what is the keeping of the law. For if, when constrained only by fear, we obey God by keeping his commandments, we are very far off from true obedience. Then, the first thing is, that our hearts should be devoted to God in willing reverence, and then, that our life should be formed according to the rule of the law. This is what Moses meant when, in giving a summary of the law, he said,

“O Israel, what does the Lord thy God require of thee, but to love him and to obey him?” (Deuteronomy 10:12.)

3 His commandments are not grievous This has been added, lest difficulties, as it is usually the case, should damp or lessen our zeal. For they who with a cheerful mind and great ardor have pursued a godly and holy life, afterwards grow weary, finding their strength inadequate. Therefore John, in order to rouse our efforts, says that God’s commandments are not grievous.

But it may, on the other hand, be objected and said that we have found it far otherwise by experience, and that Scripture testifies that the yoke of the law is insupportable. (Acts 15:2.) The reason also is evident, for as the denial of self is, as it were, a prelude to the keeping of the law, can we say that it is easy for a man to deny himself? nay, since the law is spiritual, as Paul, in Romans 7:14, teaches us, and we are nothing but flesh, there must be a great discord between us and the law of God. To this I answer, that this difficulty does not arise from the nature of the law, but from our corrupt flesh; and this is what Paul expressly declares; for after having said that it was impossible for the Law to confer righteousness on us, he immediately throws the blame on our flesh.

This explanation fully reconciles what is said by Paul and by David, which apparently seems wholly contradictory. Paul makes the law the master of death, declares that it effects nothing but to bring on us the wrath of God, that it was given to increase sin, that it lives in order to kill us. David, on the other hand, says that it is sweeter than honey, and more desirable than gold; and among other recommendations he mentions the following — that it cheers hearts, converts to the Lord, and quickens. But Paul compares the law with the corrupt nature of man; hence arises the conflict: but David shews how they think and feel whom God by his Spirit has renewed; hence the sweetness and delight of which the flesh knows nothing. And John has not omitted this difference; for he confines to God’s children these words, God’s commandments are not grievous, lest any one should take them literally; and he intimates that, it comes through the power of the Spirit, that it is not grievous nor wearisome to us to obey God.

The question, however, seems not as yet to be fully answered; for the faithful, though ruled by the Spirit, of God, yet, carry on a hard contest with their own flesh; and how muchsoever they may toil, they yet hardly perform the half of their duty; nay, they almost fail under their burden, as though they stood, as they say, between the sanctuary and the steep. We see how Paul groaned as one held captive, and exclaimed that he was wretched, because he could not fully serve God. My reply to this is, that the law is said to be easy, as far as we are endued with heavenly power, and overcome the lusts of the flesh. For however the flesh may resist, yet the faithful find that there is no real enjoyment except in following God.

It must further be observed, that John does not speak of the law only, which contains nothing but commands, but connects with it the paternal indulgence of God, by which the rigor of the law is mitigated. As, then, we know that we are graciously forgiven by the Lord, when our works do not come up to the law, this renders us far more prompt to obey, according to what we find in Psalm 130:4,

“With thee is propitiation, that thou mayest be feared.”

Hence, then, is the facility of keeping the law, because the faithful, being sustained by pardon, do not despond when they come short of what they ought to be. The Apostle, in the meantime, reminds us that we must fight, in order that we may serve the Lord; for the whole world hinders us to go where the Lord calls us. Then, he only keeps the law who courageously resists the world.