It it was around the Greek word ἐκκλησία and its Latin equivalent ecclesiathat Christian theology developed.
The English word “church” was derived from the Greek word “kyridakon” which wasn’t even used in the Greek during New Testament times and isn’t found anywhere in the New Testament.
Actually it comes from the Greek through the Old English cirice/circe from the West German kirika. Thus its usage, while not in the New Testament, is much older than you would give. But this is all irrelevant since Christian theology was developed in Greek and Latin, not English!
No, RCC theology was developed using Latin. Christian theology was developed around Hebrew and Greek. That apostles did not write in Latin.
>>while not in the New Testament, is much older than you would give.<<
Um, the point is that the concept of what many people think today as “church” was not a concept that was used in the time of the apostles. I don’t care “how old it is”. What the apostles taught is what is to be believed. Nothing else.
“But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed. As we said before, so say I now again, If any man preach any other gospel unto you than that ye have received, let him be accursed.” Galatians 1:8-9
Do you believe anything that the apostles didn’t teach?