That all goes to naught if the person believing has not been BAPTIZED into the body of Christ, he is NOT saved. In regards to your statement of there being only one baptism, what do you do with Hebrews 6:2 " Of the doctrine of BAPTISMS, and of laying on of hands, and of resurrection of the dead, and of eternal judgement." ? The Holy Spirit baptized ME into the body of Christ, my Pastor baptized ME in water and Jesus baptized ME in the Holy Spirit, with evidence of speaking in tongues. I'll take an experience over a doubtful theory any day.