It is all throughout the Bible of the sinful nature of man. We are born into sin. You know this but use earplugs and blinders when it comes to Mary. All have sinned and come short of the Glory of God.
Except Mary. God preserved her from original sin. The angel Gabriel said so. It’s in the Bible.
“It is all throughout the Bible of the sinful nature of man. We are born into sin.”
So there is no direct reference to Mary having sinned.
Why, then, do you believe this is so?
Nobody questions that David is a sinner - because his sins are documented. Why is Mary’s sin not documented?