The one who keeps His commandments remains in Him, and He in him. We know by this that He remains in us, by the Spirit whom He has given us.

Testing the Spirits

Beloved, do not believe every spirit, but test the spirits to see whether they are from God, because many false prophets have gone out into the world.

By this you know the Spirit of God: every spirit that confesses that Jesus Christ has come in the flesh is from God;

and every spirit that does not confess Jesus is not from God; this is the spirit of the antichrist, which you have heard is coming, and now it is already in the world.

We are from God. The one who knows God listens to us; the one who is not from God does not listen to us. By this we know the spirit of truth and the spirit of error.

By this we know that we remain in Him and He in us, because He has given to us of His Spirit.

This is the One who came by water and blood, Jesus Christ; not with the water only, but with the water and with the blood. It is the Spirit who testifies, because the Spirit is the truth.

the Spirit and the water and the blood; and the three are in agreement.