>>553434
I'll lay out the argument they were making using various verses.
"Charity never faileth: but whether there be prophecies, they shall fail; whether there be tongues, they shall cease; whether there be knowledge, it shall vanish away. For we know in part, and we prophesy in part. But when that which is perfect is come, then that which is in part shall be done away." (1 Corinthians 13:8-10). The argument made was that the Bible is the perfect which does away with the need for prophecies, speaking in tongues, or even new theological ideas. A brief argument was made that the perfect does not refer to Jesus himself because Jesus is always referred to with personal pronouns in the Bible. Thus, in this interpretation, prophesy and speaking in tongues is no longer necessary.
Then this verse was brought up: "as His divine power has given to us all things that pertain to life and godliness, through the knowledge of Him who called us by glory and virtue…" (2 Peter 1:3). The argument was that prophesy necessarily reveals something about life and godliness, but that the Bible has already revealed everything we need about life and godliness. Thus a prophesy would either speak about something already in the Bible, and be redundant, or it would speak of something not in the Bible. However, because the Bible reveals everything about life and godliness, prophesy revealing any new information would automatically be in contradiction with the Bible.
Now I'm not sure that follows logically, but any comments or critiques would be appreciated.