Point well taken. If that were the only evidence it would be thrown out of court for lack of evidence. However, we also know that we can't say "Jesus is Lord" except by the Holy Spirit. I'm saying that receiving Christ is a work of the Holy Spirit, just as those in
Acts 19 were already believers who had net yet received the Holy Spirit. It's a different work of the Holy Spirit and one that every believer should have. I think we probably agree on that.