Season 5, Episode 11: "The Conversion"

The hat conveys that--

That solemn religious look you want in a faith.

Are you familiar with Orthodox theology?

perhaps not to the extent that you are,

but, uh... Heh, heh.

But I, uh-- I know the basic plot, yeah.

Yes, you know, the flood and the, uh, lepers

and the commandments and all that.