(I'd be curious to see when those stories entered the canon of both mythologies. Like historically, the Norse and the Christians have had extensive contact. The parallels you're referencing date back to Judaic stories, to be fair, but the idea of one religion's tales influencing the other seems highly plausible.
I'll ask my dad; he studies Norse sagas and myths academically--like he used to teach this stuff at universities. Maybe he's got an idea of which influenced which, or whether they did at all. Other religions have similar stories, after all, like the Garden of Hesperides in Greek mythology. Things sometimes evolve convergently or are influenced by another thing so long ago that the connection is forgotten.)
"If you say so." A smile played about their lips. "I'm a cynic, I'm afraid."
