6 So whoever lives in Christ does not continue to sin. If they continue to sin, they have never really understood Christ and have never known him.
7 Dear children, don’t let anyone lead you into the wrong way. Christ always did what was right. So to be good like Christ, you must do what is right.
8 The devil has been sinning since the beginning. Anyone who continues to sin belongs to the devil. The Son of God came for this: to destroy the devil’s work.
9 Those who are God’s children do not continue to sin, because the new life God gave them stays in them. They cannot keep sinning, because they have become children of God.
10 So we can see who God’s children are and who the devil’s children are. These are the ones who are not God’s children: those who don’t do what is right and those who do not love their brothers and sisters in God’s family.
11 This is the teaching you have heard from the beginning: We must love each other.
12 Don’t be like Cain. He belonged to the Evil One. Cain killed his brother. But why did he kill him? Because what Cain did was evil, and what his brother did was good.