[editor-surveyor]

How could he be a descendant of Adam if his mother lacked Adam’s sin nature?

Mary would have had to have been removed from Adam’s lineage somehow.

Fortunately, Mary was quite the sinner, as can be ascertained from each and every mention of her after his birth.

[Mrs. Don-o]

Adam's original nature was not a sin nature. It was a "good" human nature.

Are you saying Jesus had to have a depraved nature in order to be the Messiah>

"Fortunately, Mary was quite the sinner, as can be ascertained from each and every mention of her after his birth."

"Fortunately"?? You think it's "fortunate" if Mary wasn't full of grace? But then the Archangel Gabriel lied.

Mary doesn't exhibit any sin in the Gospels. Perhaps you're thinking of the Quran?