What are some examples of irony in the story of the fall of Satan?

We wouldn't expect for Beelzebub to have the submissive attitude that he has because he is supposed to be next in crime, next in power to Satan. Even Satan wouldn't expect that response from him.

Also, Milton was expecting to justify the ways of God to men, and there are some people, like the poet, William Blake, who believe that Milton was of the devils party.