Captivity.

One more thing before I go

One more thing I'll ask you Lord
You may need a murderer
Someone to do your dirty work

Don't act so innocent
I've seen you pound your fist into the earth
And I've read your book
It seems that you could use another fool
Well I'm cruel
And I look right through

You must have more important things to do
So if you need a murderer
Someone to do your dirty work