3 How great is the love the Father has lavished on us, that we should be called children of God! And that is what we are! The reason the world does not know us is that it did not know him. 2 Dear friends, now we are children of God, and what we will be has not yet been made known. But we know that when he appears, we shall be like him, for we shall see him as he is. 3 Everyone who has this hope in him purifies himself, just as he is pure.
God has adopted us as children. Some people say that everyone is a “child of God,” but as I explored here that is not the case. We should live in joy that God has adopted us and share that with others.
4 Everyone who sins breaks the law; in fact, sin is lawlessness. 5 But you know that he appeared so that he might take away our sins. And in him is no sin. 6 No one who lives in him keeps on sinning. No one who continues to sin has either seen him or known him.
7 Dear children, do not let anyone lead you astray. He who does what is right is righteous, just as he is righteous. 8 He who does what is sinful is of the devil, because the devil has been sinning from the beginning. The reason the Son of God appeared was to destroy the devil’s work. 9 No one who is born of God will continue to sin, because God’s seed remains in him; he cannot go on sinning, because he has been born of God. 10 This is how we know who the children of God are and who the children of the devil are: Anyone who does not do what is right is not a child of God; nor is anyone who does not love his brother.
That is a challenging passage at first glance, because it makes it appear that if we sin we aren’t Christians. But that can’t be reconciled with many other passages. There is a deeper meaning that appears to distinguish between our sinful nature and our new nature in Christ, such as in Romans 7:20 – Now if I do what I do not want to do, it is no longer I who do it, but it is sin living in me that does it.
Love One Another
11 This is the message you heard from the beginning: We should love one another. 12 Do not be like Cain, who belonged to the evil one and murdered his brother. And why did he murder him? Because his own actions were evil and his brother’s were righteous. 13 Do not be surprised, my brothers, if the world hates you.
We are often desperate to be liked, but the message of the Gospel will offend people. We don’t want to add to the offense with ill manners and the like, but it is more important to make the truth about God known than to try to win the world’s approval. In the end they won’t approve of you anyway.
14 We know that we have passed from death to life, because we love our brothers. Anyone who does not love remains in death. 15 Anyone who hates his brother is a murderer, and you know that no murderer has eternal life in him.
16 This is how we know what love is: Jesus Christ laid down his life for us. And we ought to lay down our lives for our brothers. 17 If anyone has material possessions and sees his brother in need but has no pity on him, how can the love of God be in him? 18 Dear children, let us not love with words or tongue but with actions and in truth. 19 This then is how we know that we belong to the truth, and how we set our hearts at rest in his presence 20 whenever our hearts condemn us. For God is greater than our hearts, and he knows everything.
21 Dear friends, if our hearts do not condemn us, we have confidence before God 22 and receive from him anything we ask, because we obey his commands and do what pleases him. 23 And this is his command: to believe in the name of his Son, Jesus Christ, and to love one another as he commanded us. 24 Those who obey his commands live in him, and he in them. And this is how we know that he lives in us: We know it by the Spirit he gave us.
We are commanded to believe in Jesus and to love one another.
The Holy Bible : New International Version. 1996, c1984. Grand Rapids: Zondervan.