Oops, I posted #71 to myself. Doh! I stumbled upon some verses in Matthew you might want to look at. (Matthew 12:46-50)
Enjoy.
I did find and managed to remember that Matthew 12 passage, and had used it in apologia previously.
Imagine Jesus leaving His mother and brothers to sit outside in the crowd, whether she was a sinless being or not!
But the ministry was too important to have her replace one person in the house. She and the rest of her kids had already heard Jesus speak, and that one person probably hadn't.