1 John 4:1 in the King James Version
Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets are gone out into the world.
Context
1 Beloved, don’t believe every spirit, but test the spirits, whether they are of God, because many false prophets have gone out into the world.
2 By this you know the Spirit of God: every spirit who confesses that Jesus Christ has come in the flesh is of God,