Bart Barber: "Can a pedobaptist church be a valid New Testament church? To that I would say, eventually not. I conclude from Christ's admonition to the Ephesian church in Revelation 2 that there is a probationary warning period during which a church is sinning in ways that disqualify it from being a church, but during which Christ patiently calls the church to repentance and awaits their obedience before actually 'removing their lampstand' so to speak. I conclude this from the fact that the Ephesian church itself was already guilty, but Christ had not yet removed their lampstand (but was merely warning that He would surely do so soon if they would not repent).
"Pedobaptist churches are in sin against God. They are in sin that disqualifies them from being a valid church. Has Christ yet executed judgment against them, or are they in His probationary period? I don't know how to answer that question. I suspect that hundreds of years is long enough."
From comments on Bart's blog post "Baptist Identity" Influences in My Life