Qcmbr,
IF JWs had a doctrine that included divine revelation as being the source of their doctrines that differ from the First Century then your point would have merit. In their case, they have no such doctrine of divine revelation. They specifically state that they have not had such revelations in modern times.
I was not attempting to address the problematic doctrines of every religious faith, nor to compare JWs to any currently existing religion. I was attempting to address the doctrine of Jehovah's Witnesses. I understood that to be the purpose of this forum. I was also comparing their doctrine and behaviors to the doctrine of known Christians in the First Century. JWs accept the book of Acts as a factual relation of events in the First Century and accept the canon of Scripture that comprises the Authorized Version of the Bible. Other religions that do not obviously cannot be weighed by the same measures.
Regarding circumcision, I would not be forced to hold the Mosaic covenant as binding if I am not a Jew. To impose that was ludicrous to all but recently converted Jews, which I have never been. My logic does not impose upon me the standards of the OT. The OT was not written for Christians, but for the Jews. Dozens of parctices of Judaism have not been handed down through Christianity because they make no sense for Christians. We were freed from the burden of the written law by its fulfillment. Our law code is written by spirit upon hearts; not handed down through organizational edicts in the Watchtower or through Papal bulls.
ANL