"Good does not testify directly about them through the scriptures - an impossibility since they did not even exist when the scriptures were written!"
Of course it's not impossible for God! All he needed to do was get the bloke that wrote Revelation to add a bit that said:
"One thousand and nine hundred years from now, in the land over the Western sea, a group of men will arise, blessed by God speaking truth. Then they will change that truth many times and also, they will be strangely obsessed with your sexual activity. Obey these men as you would the word of God or they will break up your family bonds and cause great lamentation in the land."