1 John 3:24-4:6

New International Version

²⁴ The one who keeps God’s commands^(A) lives in him,^(B) and he in them. And this is how we know that he lives in us: We know it by the Spirit he gave us.^(C)

On Denying the Incarnation

4 Dear friends,^(D) do not believe every spirit,^(E) but test the spirits to see whether they are from God, because many false prophets have gone out into the world.^{(F) 2} This is how you can recognize the Spirit of God: Every spirit that acknowledges that Jesus Christ has come in the flesh^(G) is from God,^{(H) 3} but every spirit that does not acknowledge Jesus is not from God. This is the spirit of the antichrist,^(I) which you have heard is coming and even now is already in the world.^(J)

⁴ You, dear children,^(K) are from God and have overcome them,^(L) because the one who is in you^(M) is greater than the one who is in the world.^{(N) 5} They are from the world^(O) and therefore speak from the viewpoint of the world, and the world listens to them. ⁶ We are from God, and whoever knows God listens to us; but whoever is not from God does not listen to us.^(P) This is how we recognize the Spirit^[a] of truth^(Q) and the spirit of falsehood.^(R)