4:17 {13} Herein is our love made perfect, that we may have boldness in the day of judgment: because {i} as he is, so are we in this world.
(13) Again (as before) he commends love, seeing that by our agreement with God in this thing, we have a sure testimony of our adoption, it comes to pass by this that without fear we look for that latter day of judgment, so that trembling and torment of conscience is cast out by this love.
(i) This signifies a likeness, not an equality.
4:17 Herein is our love made perfect. When love is perfected in us we will have no fear of the judgment day. Those who love God supremely will not be terrified at his presence.
Because as he is, so are we. The great ground of boldness is that we are as Christ; purified like him, made sinless like him, filled with love like him and appear at judgment in his likeness.
In this world. This transformation begins when we are converted, hence, in this world.
4:17 Hereby - That is, by this communion with God. Is our love made perfect; that we may - That is, so that we shall have boldness in the day of judgment - When all the stout - hearted shall tremble. Because as he - Christ. Is - All love. So are we - Who are fathers in Christ, even in this world.
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.