There is another possibility considering the audience he is addressing - the peacenicks.
Biden know Obama will be “tested” because he is perceived as weak.
Which means Obama may have to respond with great force to discourage further “testing”.
Biden might be telling these people that their peace loving false messiah might have to become a warmonger.
Given his track record, his “religion” and his “friends”... I'll stick with my opinion.
Reminds me of Margaret Thatcher and the Falklands.
I think you broke the code. Thats my take as well