The Proof That We Are Really Born Again (1 John 3:10–15)
John taught that the love that Jesus showed would be an outgrowth of someone who had made him his or her Savior. “So now we can tell who are children of God and who are children of the devil. Anyone who does not live righteously and does not love other believers does not belong to God” (1 John 3:10).
John goes on to say that loving one another is the message his readers had heard from the very beginning (1 John 3:11). But then he tells them that brotherly Christian love is the proof that someone has really been saved: “If we love our Christian brothers and sisters, it proves that we have passed from death to life. But a person who has no love is still dead. Anyone who hates another brother or sister is really a murderer at heart. And you know that murderers don';t have eternal life within them” (1 John 3:14–15).
How exactly do we demonstrate Christian love?
The apostle Paul gives some of the best examples and instruction when it comes to loving one another in the thirteenth chapter of his first letter to the Corinthian church — also known as the Love Chapter. In that passage, he tells us that love is, among other things, patient and kind and that it is not jealous, vain, proud, rude, or selfish.
John';s teaching about love being the proof of one';s Christianity fits in with what Jesus told his disciples late in his earthly ministry: “Your love for one another will prove to the world that you are my disciples” (John 13:35). In other words, love is proof to the world, to ourselves, and to other believers that we really are children of God.
What, according to John, are the two proofs that someone is a child of God?
What does John say about those who don';t love other Christians?