I am not "demanding" anything
Catholics all claim theirs was the original church of the NT..yet we see that in that NT church there was no pope, no apostolic succession, and no priesthood.
NL.. The Old testament points to Christ, it is ALL about Christ. It is full of types and shadows of Christ.. The priesthood was one of those types.. Once Jesus fulfilled the type as both the one that offers the sacrifice (Jhn 10:18 — No man taketh it from me, but I lay it down of myself. I have power to lay it down, and I have power to take it again. This commandment have I received of my Father.) and the type of the lamb of God (Treasury of Scripture Knowledge Jhn 1:29 — The next day John seeth Jesus coming unto him, and saith, Behold the Lamb of God, which taketh away the sin of the world.)
There was no longer any need for future sacrifices and the types were fulfilled.. thus the NT church has no need for a priesthood, and the Jewish priesthood was eliminated by God because the type was fulfilled
Now if you guys want to point to a tradition that began 300 years after Christ as tradition.. be my guest..but then do not claim to be the early Biblical church