To reject what the first Christians believed, well, you cant say you didnt know. Heres a quote:
In A.D. 151, Justin Martyr wrote,
As many as are persuaded and believe that what we [Christians] teach and say is true . . . are brought by us where there is water and are regenerated in the same manner in which we were ourselves regenerated. For, in the name of God the Father . . . and of our Savior Jesus Christ, and of the Holy Spirit [Matt. 28:19], they then receive the washing with water. For Christ also said, Unless you are born again, you shall not enter into the kingdom of heaven [John 3:3] (First Apology 61).
"There is ONE body, and one Spirit, even as ye are called in one hope of your calling. One Lord, one faith, ONE BAPTISM, One God and Father of all, who is above all, and through all, and in you all." Eph. 4:4-6.
So what is this ONE BAPTISM that is spoken of here?
"For BY ONE SPIRIT are we all BAPTIZED INTO ONE BODY.." 1 Cor. 12:13.
It is the Spirit, in the dispensation of Grace, that baptizes us into Christ the very moment we trust in the finished work of Christ. "For ye are all the children of God by faith in Christ Jesus. For as many of you as have been baptized into Christ have put on Christ." (Gal. 3:26, 27).
And, once again, how are we "baptized into Christ"? "For BY ONE SPIRIT are we all baptized INTO ONE BODY."
Not by water, not by fire, not by baptism in suffering (Lk. 12:50), not in the cloud and in the sea (1 Cor. 10:2), and not by baptism IN the Holy Spirit.
The ONE BAPTISM is BY the Holy Spirit into the body of Christ, not IN the Holy Spirit.
Actually, this was believed before A.D. 151. This was believed around 59 A.D. or before. When the revelation of the mystery was revealed to Paul, who was given the ministry of forming the body of Christ. Long before Justin Martyr was around.