Debate of Micheal Brown and Sam Waldron over the continuation and cessation of the sign-gifts

Some time back, Dr. James White moderated an online Skype-facilitated debate between the Charismatic Dr. Micheal Brown, and the Reformed Baptist Dr. Sam Waldron. The debate can be seen as follows:

It seems to me that there is a much better way to deal with the issue of tongues and prophecy — return back to the Old Testament. What is the biblical theological understanding of language, and what is the biblical theological understanding of prophecy? Far too often, Charismatics think they know what tongues is, and what prophecy is, without any idea of how the themes are developed in the Scriptures. God does not just do the miraculous for a capricious show of power, but everything is done for a reason. Instead of challenging the Charismatics using various proof texts, the better way IMO is to show that the Charismatic idea of tongues and prophecy are not biblical. Tongues did not just leap out de novo on the Day of Pentecost, neither did prophecy begin in the book of Acts.