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. 19 In this way we may be certain that we are true, and may give our heart comfort before him,
20 When our heart says that we have done wrong; because God is greater than our heart, and has knowledge of all things. 21 My loved ones, if our heart does not say that we have done wrong, we have no fear before him; 22 And he gives us all our requests, because we keep his laws and do the things which are pleasing in his eyes.
23 And this is his law, that we have faith in the name of his Son Jesus Christ, and love for one another, even as he said to us.
Matthew Henry's Commentary on 1 John 3:18-23
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.
Commentary on 1 John 3:22-24
(Read 1 John 3:22-24)
When believers had confidence towards God, through the Spirit of adoption, and by faith in the great High Priest, they might ask what they would of their reconciled Father. They would receive it, if good for them. And as good-will to men was proclaimed from heaven, so good-will to men, particularly to the brethren, must be in the hearts of those who go to God and heaven. He who thus follows Christ, dwells in Him as his ark, refuge, and rest, and in the Father through him. This union between Christ and the souls of believers, is by the Spirit he has given them. A man may believe that God is gracious before he knows it; yet when faith has laid hold on the promises, it sets reason to work. This Spirit of God works a change; in all true Christians it changes from the power of Satan to the power of God. Consider, believer, how it changes thy heart. Dost not thou long for peace with God? Wouldst thou not forego all the world for it? No profit, pleasure, or preferment shall hinder thee from following Christ. This salvation is built upon Divine testimony, even the Spirit of God.