1 John 4:1–3

Testing the Spirits

1 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.

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

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