dsc,
You wrote, “You claim to know both more and less than that.”
I claim that anything not in Scripture is made up by those who prefer a “Living Constitution” that can mean whatever is needed over time.
In this case, teachings like Mary’s perpetual virginity or immaculate conception are non-Biblical teachings, likely of pagan origin. Neither is found in God’s revealed truth. Neither is necessary for salvation, according to His Word.
best
“I claim that anything not in Scripture is made up by those who prefer a “Living Constitution” that can mean whatever is needed over time.”
I pity all who languish in the grasp of that Satanic deception.