Lyric discussion by Appers66 

Cover art for We Call Upon the Author lyrics by Nick Cave and the Bad Seeds

"Prolix" means where you're over-the-top and gradiose with your language when it's inappropriate to be. I'm not sure how that fits into the song up to the last 2 verses! The rest of it seems to be asking god- the "author"- about all the atrocities in the world and why he hasn't come down and fixed them all yet. Maybe it's saying trying to answer these questions is needless? I'unno, I'm stretching, here. Still, fun song!