1 John 4:1-3

Test the Spirits

1Beloved ado not believe every spirit, but btest the spirits to see whether they are from God, for cmany dfalse prophets ehave gone out into the world. 2By this you know the Spirit of God: fevery spirit that confesses that gJesus Christ has come in the flesh is from God, 3and every spirit hthat does not confess Jesus is not from God. This is the spirit of the antichrist, which you heard was coming and inow is in the world already.
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