Another atheist here. Also of Jewish ethnicity. And I definitely know more about the New Testament than she does because she’s speaking with authority and that is expressly not allowed. I’m guessing Jesus and other first century Judean men would not be a big fan of women being armed either, what with them being property at the time. Something tells me she would not agree to be property.

Also, she’s likely divorced if she’s a grandmother and going on dates. Jesus expressly forbids divorce. (It could be that she’s widowed I suppose, but she better not have had her child out of wedlock.)