Quote Originally Posted by Neel Hates Clout's Guts
How ONEdrous TWO is truTH REEceived
FOUR him who'd deFI VErity
As hope the SIX ootheS EVEN sEIGHTs
So beNINE the uncerTEN's made

I should have known it would be something like this coming from Unne.

edit: I guess I owe an explanation of what made me think this way. St. Peter says "therein", which makes me think of words inside words. He also says "each is accounted for", meaning the final number should be counted up to in the riddle. "Take your time" - all I had to do was start saying it out slowly and bam. In the verse section, the last couplet clued me in to the indirect nature of finding the clues - the general idea of the truth appearing, truth defying, an uncertain answer as benign, something I dunno, it made sense, shut up I'm not sober.
Yeah, that was more or less how I got it. Lev's benign comment alerted me to the words-within-words thing, but I wasn't entirely sure what the final total was supposed to be. "Ten's made" sounded conclusive enough, so I went for that.

Sorry, should've explained myself earlier.

As for PG's puzzle, I agree with Neel's solution.