"God, huh?" Dean asks with a slight, humorless huff of a laugh. It's basically an unfunny joke to him now. Cas tried to find God — tried to believe — and came up with a whole bunch of nothing.

"God ain't worth your time. Never was."

He wasn't worth Castiel's time, either.

Dean makes a turn. Heads back to his base, because there's no point in following a lead that ended up being false.

"Maybe you shouldn't've left that church, Sam. But guess what? You did." He glances in the rear view mirror. "So how about you quit bitching about how you should be dead and just deal with being alive?"