[It is assuming a lot, because it's assuming Lucifer didn't help in tearing Sam Winchester down.

Which, for the record, he pleads the fifth.

But ah, he's Sam Winchester right now, isn't he? Good ol' Sammy.]

Oh, it's not revenge. It's a cleansing. [The space around them darkens, grows colder and colder still.] A cleansing I'm more than happy to do to this cursed little town, the stronger I get. I'll make a world he'd appreciate, alright; one that is full of life — just... without humans.

[He smiles slightly, eyes glowing red in the dimness.]

Say, don't you have a girl to fail? Can't you hear her hopelessness?