1 John 4:1 Updated American Standard Version (UASV) 4 Beloved ones, do not believe every spirit, but test the spirits to see whether they are from God, for many false prophets have gone out into the world.

We must not believe every spirit, for only the spirit that acknowledges that Jesus Christ has come in the flesh is from God; the one that fails to make this acknowledgment is the spirit of the Antichrist.