Shame on you.
Seriously.
She's not wrong objecting to the silly names. Surely you can think of a kind, Godly, Christlike way to inform her of that name's origin.
She thinks I'm a bad person because I am a Protestant. In her eyes, I am not a Christian. I was NOT about to start an argument with her about "who knows the Bible better".
Perhaps if I were a better person, I could have found a perfect way to have that conversation with her. But I considered it to be beyond my abilities.