[NeoCaveman]

Because it's powerful protection against the errors of the Nesotarians. Has been since the Coucnil of Ephesus in 432 AD.

[Resettozero]

Because it's powerful protection against the errors of the Nesotarians. Has been since the Coucnil of Ephesus in 432 AD.

Well, that's an answer I guess. So the RCC is still fighting the Nesotarians and that's why you need powerful protection against their errors?

What does any of that have to do with repeatedly calling to Mary as 'Mother of God'?

Like, I said, I cannot get a clear-cut answer to my question that pertains to a repetitious practice of virtually all RCs.