{14} We love him, because he first loved us.

(14) Lest any man should think that that peace of conscience proceeds from our love as the cause, he goes back to the fountain, that is, to the free love with which God loves us although we deserved and do deserve his wrath. From this springs another double charity, which both are tokens and witnesses of that first, that is, that we love God who loved us first, and then for his sake our neighbours also.

People's New Testament

4:19 We love him, because he first loved us. His wonderful love in Christ fills every redeemed soul with love.

Wesley's Notes

4:19 We love him, because he first loved us - This is the sum of all religion, the genuine model of Christianity. None can say more: why should any one say less, or less intelligibly?

Jamieson-Fausset-Brown Bible Commentary

19. him-omitted in the oldest manuscripts. Translate, We (emphatical: WE on our part) love (in general: love alike Him, and the brethren, and our fellow men), because He (emphatical: answering to "we"; because it was He who) first loved us in sending His Son (Greek aorist of a definite act at a point of time). He was the first to love us: this thought ought to create in us love casting out fear (1Jo 4:18).

Matthew Henry's Concise Commentary

4:14-21 The Father sent the Son, he willed his coming into this world. The apostle attests this. And whosoever shall confess that Jesus is the Son of God, God dwelleth in him, and he in God. This confession includes faith in the heart as the foundation; makes acknowledgment with the mouth to the glory of God and Christ, and profession in the life and conduct, against the flatteries and frowns of the world. There must be a day of universal judgment. Happy those who shall have holy boldness before the Judge at that day; knowing he is their Friend and Advocate! Happy those who have holy boldness in the prospect of that day, who look and wait for it, and for the Judge's appearance! True love to God assures believers of God's love to them. Love teaches us to suffer for him and with him; therefore we may trust that we shall also be glorified with him, 2Ti 2:12. We must distinguish between the fear of God and being afraid of him; the fear of God imports high regard and veneration for God. Obedience and good works, done from the principle of love, are not like the servile toil of one who unwillingly labours from dread of a master's anger. They are like that of a dutiful child, who does services to a beloved father, which benefit his brethren, and are done willingly. It is a sign that our love is far from perfect, when our doubts, fears, and apprehensions of God, are many. Let heaven and earth stand amazed at his love. He sent his word to invite sinners to partake of this great salvation. Let them take the comfort of the happy change wrought in them, while they give him the glory. The love of God in Christ, in the hearts of Christians from the Spirit of adoption, is the great proof of conversion. This must be tried by its effects on their temper, and their conduct to their brethren. If a man professes to love God, and yet indulges anger or revenge, or shows a selfish disposition, he gives his profession the lie. But if it is plain that our natural enmity is changed into affection and gratitude, let us bless the name of our God for this seal and earnest of eternal happiness. Then we differ from the false professors, who pretend to love God, whom they have not seen, yet hate their brethren, whom they have seen.