13 Do not be surprised, my brothers, if the world has no love for you.
14 We are conscious that we have come out of death into life because of our love for the brothers. He who has no love is still in death. 15 Anyone who has hate for his brother is a taker of life, and you may be certain that no taker of life has eternal life in him. 16 In this we see what love is, because he gave his life for us; and it is right for us to give our lives for the brothers. 17 But if a man has this world's goods, and sees that his brother is in need, and keeps his heart shut against his brother, how is it possible for the love of God to be in him? 18 My little children, do not let our love be in word and in tongue, but let it be in act and in good faith.
Matthew Henry's Commentary on 1 John 3:13-18
Commentary on 1 John 3:11-15
(Read 1 John 3:11-15)
We should love the Lord Jesus, value his love, and therefore love all our brethren in Christ. This love is the special fruit of our faith, and a certain sign of our being born again. But none who rightly know the heart of man, can wonder at the contempt and enmity of ungodly people against the children of God. We know that we are passed from death to life: we may know it by the evidences of our faith in Christ, of which love to our brethren is one. It is not zeal for a party in the common religion, or affection for those who are of the same name and sentiments with ourselves. The life of grace in the heart of a regenerate person, is the beginning and first principle of a life of glory, whereof they must be destitute who hate their brother in their hearts.
Commentary on 1 John 3:16-21
(Read 1 John 3:16-21)
Here is the condescension, the miracle, the mystery of Divine love, that God would redeem the church with his own blood. Surely we should love those whom God has loved, and so loved. The Holy Spirit, grieved at selfishness, will leave the selfish heart without comfort, and full of darkness and terror. By what can it be known that a man has a true sense of the love of Christ for perishing sinners, or that the love of God has been planted in his heart by the Holy Spirit, if the love of the world and its good overcomes the feelings of compassion to a perishing brother? Every instance of this selfishness must weaken the evidences of a man's conversion; when habitual and allowed, it must decide against him. If conscience condemn us in known sin, or the neglect of known duty, God does so too. Let conscience therefore be well-informed, be heard, and diligently attended to.