This is how you can recognize the Spirit of God: every spirit that acknowledges that Jesus Christ has come in the flesh is from God, and every spirit that does not acknowledge Jesus is not from God. This is the spirit of the Antichrist, about whose coming you have been told, and that it is already in the world.
On hearing this, they were baptized in the name of the Lord Jesus. When Paul had laid his hands on them, the Holy Spirit came upon them, and they spoke in tongues and prophesied.