"Repent," said Peter, "let each of you be baptized in the name of Jesus Christ for the remission of your sins; then you will receive the gift of the holy Spirit.
so I tell you now, that no one is speaking in the Spirit of God when he cries, 'Cursed be Jesus,' and that no one can say, 'Jesus is Lord,' except in the holy Spirit.
Baptism, the counterpart of that, saves you to-day (not the mere washing of dirt from the flesh but the prayer for a clean conscience before God) by the resurrection of Jesus Christ
He who believes in the Son of God possesses that testimony within himself; he who will not believe God, has made God a liar by refusing to believe the testimony which God has borne to his Son.