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

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,

I am writing to you, fathers, that you have known him who has been from the beginning. I am writing to you, young people, that you have conquered the evil one.

(See what sort of love the Father has given to us: that we should be called God’s children – and indeed we are! For this reason the world does not know us: because it did not know him.

If you know that he is righteous, you also know that everyone who practices righteousness has been fathered by him.

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

The person who does not love does not know God, because God is love.

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.

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.

Children, it is the last hour, and just as you heard that the antichrist is coming, so now many antichrists have appeared. We know from this that it is the last hour.

Everyone who resides in him does not sin; everyone who sins has neither seen him nor known him.

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.

that if our conscience condemns us, that God is greater than our conscience and knows all things.

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

By this we know that we love the children of God: whenever we love God and obey his commandments.

We are from God; the person who knows God listens to us, but whoever is not from God does not listen to us. By this we know the Spirit of truth and the spirit of deceit.

I have written to you, children, that you have known the Father. I have written to you, fathers, that you have known him who has been from the beginning. I have written to you, young people, that you are strong, and the word of God resides in you, and you have conquered the evil one.

And the person who keeps his commandments resides in God, and God in him. Now by this we know that God resides in us: by the Spirit he has given us.

Dear friends, let us love one another, because love is from God, and everyone who loves has been fathered by God and knows God.

And we have come to know and to believe the love that God has in us. God is love, and the one who resides in love resides in God, and God resides in him.