But whoever obeys his word, truly in this person the love of God has been perfected. By this we know that we are in him.

These things I have written to you about those who are trying to deceive you.

And everyone who has this hope focused on him purifies himself, just as Jesus is pure).

By this love is perfected with us, so that we may have confidence in the day of judgment, because just as Jesus is, so also are we in this world.

We have come to know love by this: that Jesus laid down his life for us; thus we ought to lay down our lives for our fellow Christians.

And this is the testimony: God has given us eternal life, and this life is in his Son.

Thus we are writing these things so that our joy may be complete.

Now by this we know that we have come to know God: if we keep his commandments.

The one who says he resides in God ought himself to walk just as Jesus walked.

For this is the gospel message that you have heard from the beginning: that we should love one another,

Now this is the promise that he himself made to us: eternal life.

And you know that Jesus was revealed to take away sins, and in him there is no sin.

Little children, let no one deceive you: The one who practices righteousness is righteous, just as Jesus is righteous.

And by this we will know that we are of the truth and will convince our conscience in his presence,

They are from the world; therefore they speak from the world’s perspective and the world listens to them.

(My little children, I am writing these things to you so that you may not sin.) But if anyone does sin, we have an advocate with the Father, Jesus Christ the righteous One,

The one who says “I have come to know God” and yet does not keep his commandments is a liar, and the truth is not in such a person.

By this you know the Spirit of God: Every spirit that confesses Jesus as the Christ who has come in the flesh is from God,

By this we know that we reside in God and he in us: in that he has given us of his Spirit.

And the commandment we have from him is this: that the one who loves God should love his fellow Christian too.