What was Jonathan most common theme for his writings?

Please provide more context! Who is "Jonathan" you are referring to? There are many famous writers named Jonathan, including:

* Jonathan Swift: Known for satire and social commentary.

* Jonathan Edwards: Known for his theological writings and sermons.

* Jonathan Franzen: Known for his contemporary novels exploring family dynamics and societal issues.

* Jonathan Safran Foer: Known for his novels exploring themes of memory, identity, and loss.

Once you clarify who "Jonathan" you're asking about, I can tell you about their most common themes!