Okay, so what can I say about this comic without getting into trouble theologically?

How about this?

Minuses:
– Artist is almost certainly not a evangelical Christian.
– The comic is somewhat irreverent in tone.
– God doesn’t use Vicoden.

But on the Plus-side –
In some respects (within reason of course) this comic is very nearly exactly how I think about God –

Notable:
God is portrayed as creating everything they see, and as being the causer of minute details, even those trivial actions done by a character.
God is suggested to be intimately involved and present, but also transcendent and significantly more real than the characters.
One character believes in him, another doesn’t.
The suggestion (last panel) that if God weren’t extremely consistent, every part of our reality would be wrong and undone.

 

From Opus

 

And don’t say I’m getting my theology from a comic strip. Rather, say that even as an unbelieving sceptic, the artist has been given some kind of general inspiration available to all of us just by thinking about life.