Back to the Sea

to me, it sounds like he says "and all i need to evolve, is to believe"

You're right. He says evolve. You know...the fish with the feet crawling out of the ocean...i guess. It also has some possible noah/ark references. Since the guitarist/singer Hutch Harris is so critical of the religious right and its role in American policy-making, I would venture to guess that this song explores right-wing christianity's insistence that the creation story (and not evolution) is true.

additionally, there are references to herd-mentality thinking and facism in government (gas chambers, etc).

and one last thing: i pretty much know i'm off the mark with this one, but you could interpret the sea (parting the red sea) mention and the turning back (Moses left Egypt then returned when God told him to) and gas chambers (oppression of the hebrews by egyptians) and most of all everytime he says "we'll lead 'em..." it might refer to the hebrews being led blindly through the desert for 40 years following their escape.

but then again, i'm like 99% sure that's just me reading into it WAYY too much.

sweet.

I see this as him saying that the human species' capacity for religion and faith are the flip side of being "evolved". So he's stating his preference to turn his back on standing upright and to crawl back to the ocean from which all terrestrial animals evolved. Essentially, he's calling into question the idea of human superiority over all other organisms.