That Luther, what did he know! Ha ha.  Of course the only teaching authority comes from the sacred brains of the bishops of the catholic church, who walk in the shoes of the apostles, having been selected by god to lead the church.  Now we see the full truth of papal warnings about democracy and public education.  If only the warnings had been heeded, there would be no risk of secular-educated people attempting to understand the bible on their own, instead of just accepting the teachings of the church, which, as ever, is inerrant and unchanging.