Why would ANY apostle have to have explicitly taught the I.C. in order for it to be the true understanding of the Scriptures? Doctrine develops over time.
(
1) The Scriptures don’t teach the IC. (
2) A doctrine like the Trinity
codified what was already revealed in Scripture. Scripture itself being the authority behind the doctrine. It wasn’t new revelation. (
3) True Christianity is not based on new revelation,
i.e., subsequent to the Apostolic age.
What you’re referring to as time_developed_doctrine, explicitly the IC and sinlessness of Mary (along with other Marian doctrines such as her perpetual virginity, bodily assumption and heavenly coronation) are teachings based on
human reasoning and
personal opinion developed and accepted AFTER the Apostolic age. Unless you can prove otherwise.
The ministry of the Holy Spirit was not to come into the world to reveal new revelation but to bring to the remembrance of the Apostles all that Christ had taught them for the purpose of building His church (Jn. 14:26; Eph. 2:20). Only the Apostle Paul received personal instruction from Christ after His bodily ascension back into glory.
Everyone in the early church believed that Mary was holy and immaculate. It’s in all the patristic writings that address the subject of Mary.
Everyone??? I don’t think so. Nevertheless, it matters not what men came to believe about Mary if what they believed or taught had no divine authority to back it up.
How is it that in the patristic writings none connect their teachings directly to an Apostle or Christ Himself? None identify these Marian doctrines as having Apostolic origin. Certainly some stated their own personal opinions and beliefs about her, but none directly connect those opinions and beliefs to some kind of divine origin (revelation) or Apostolic authority. They’re simply asserted in their writings. Unless you’re claiming patristic writings as
theopneustos. Are you?
The fact that RC’im has embraced, as dogma, the personal opinions of mere men does not, nor cannot, automatically brand those opinions as having Apostolic origin. One MUST provide proof of Apostolic origin of all doctrines taught in the church or you have on your hands a corrupt form of Christianity and is no better than Mohammadanism which states that you must believe it because we tell you to.
True Christianity does not allow personal opinion as its basis for forming church doctrine; nor for men to believe anything just because it makes them feel good, or because to their ears it sounds good. True Christianity is based on divine revelation only. It’s what makes it superior to all other “religions.”