He returns to his former doctrine, which he had touched upon in the second chapter; for many (as it is usual in new things) abused the name of Christ for the purpose of serving their own errors.

But let us consider what this confession includes; for when the Apostle says that Christ came, we hence conclude that he was before with the Father; by which his eternal divinity is proved.

3. And this is that spirit of Antichrist The Apostle added this, to render more detestable the impostures which lead us away from Christ. We have already said that the doctrine respecting the kingdom of Antichrist was well known; so that the faithful had been warned as to the future scattering of…

But this truth ought to be farther extended, for whatever contests we may have with the world and the flesh, a certain victory is to follow. Hard and fierce conflicts indeed await us, and some continually succeed others; but as by Christ’s power we fight and are furnished with God’s weapons, we…

We ought, however, always to bear in mind the subject which he here handles; small was the number of the godly, and unbelief prevailed almost everywhere; few really adhered to the Gospel, the greater part were running headlong into errors. Hence was the occasion of stumbling.

When he commands mutual love, he does not mean that we discharge this duty when we love our friends, because they love us; but as he addresses in common the faithful, he could not have spoken otherwise than that they were to exercise mutual love.

He also sets in opposition to this, according to his usual manner, the contrary clause, that there is no knowledge of God where there is no love. And he takes as granted a general principle or truth, that God is love, that is, that his nature is to love men.

He calls him his only begotten, for the sake of amplifying. For in this he more clearly shewed how singularly he loved us, because he exposed his only Son to death for our sakes.

Were the prattlings of the Papists entertained, that every one is chosen by God as he foresees him to be worthy of love, this doctrine, that he first loved us, would not stand; for then our love to God would be first in order, though in time posterior.

He speaks, however, first of love, when he says, that God dwells in us, if we love one another; for perfected, or really proved to be, in us is then his love; as though he had said, that God shews himself as present, when by his Spirit he forms our hearts so that they entertain brotherly love.

When the Apostle says, We have, seen and do testify, he refers to himself and others. And by seeing, he does not mean any sort of seeing, but what belongs to faith by which they recognized the glory of God in Christ, according to what follows, that he was sent to be the Savior of the world; and…

After having said in general, that men are so united to Christ by faith, that Christ unites them to God, he subjoined what they themselves had seen so that he accommodated a general truth to those to whom he was writing. Then follows the exhortation, to love one another as they were loved by God.

God is love This is as it were the minor proposition in an argument; for from faith to love he reasons in this way: By faith God dwells in us, and God is love; then, wherever God abides, love ought to be there. Hence it follows that love is necessarily connected with faith.

Then in the first place, he shews to what purpose God has in love embraced us, and how we enjoy that grace manifested to us in Christ. Then, God’s love to us is what is to be understood here.

This passage, I know, is explained otherwise by many; but I regard what the Apostle means, not what others think. They say that there is no fear in love, because, when we voluntarily love God, we are not constrained by force and fear to serve him.

But this love cannot exist, except it generates brotherly love. Hence he says, that they are liars who boast that they love God, when they hate their brethren.