And where is that written??? Is that another one of those heresies invented by Origen that he brought into the church from pagan religions? Do you believe it because the Catholic Magisterium says it is true? Where is the word for "Purgatory" in the Scriptures??? Heaven is there. Hell is there. But Purgatory is noticeably absent?
As for Provenance, I suspect that the doctrine was found as a prize in a Cracker Jacks box in the Coliseum. I've ssen both doctrine and carcker Jacks boxes AND I've seen a picture of the Coliseum! Happy now? I expect to see this theory up on one of those sites, and I'll be happy to submit it to one of my professors who will testify to my academic acumen but decline to speak either way on the Cracker Jacks theory -- and that will be take as proof that I am right!
Cool! Come back next week and I'll share my theory on the origen, uh, oriGIN (that's right - gin had plenty to do with it) of the Infield Fly Rule.
Biblical support for Purgatory is well documented in various sites. I'm not sure that a further listing of them would be any further enlightening than it has been in the past.
By definition, Purgatory is a process, not a place. It is the process whereby one is cleansed before being admitted to Heaven. Therefore, souls undergoing Purgatory will enter the Kingdom of Heaven.
I'm reading an interesting book "The History of Christianity", by Paul Johnson. He makes an interesting observation, that during the dark ages cathedrals were built by the wealthy from tax collection and were used for prayers to have the rich pardoned from purgatory. Apparently the practice became so corrupt, churches built on the backs of the poor for the benefit of the rich, that the laity were well disposed towards reform.