on the head of a pin

And it is written that the first seal shall be broken when a righteous man sheds blood in Hell. As he breaks, so shall it break. We had to break the first seal before any others, only way to get the dominoes to fall, right? Topple the one at the front of the line. When we win, when we bring on the Apocalypse and burn this earth down, we owe it all to you, Dean Winchester.

2

I can see no way, I can see no way.
And all of the ghouls come out to play.
And every demon wants his pound of flesh,
But I like to keep some things to myself. 
I like to keep my issues drawn; 
It’s always darkest before the dawn.

Florence + The Machine, Shake It Out