This is a Christian band. It is about God "NOT" a girl.
It is about some Christians waiting to go to heaven, but God did not let them in because the things they did was Unauthorized.
Matthew 7:20
Every tree that does not bear good fruit is cut down and thrown into the fire.Thus, by their fruit you will recognize them.
"Not everyone who says to me, 'Lord, Lord,' will enter the kingdom of heaven, but only he who does the will of my Father who is in heaven. Many will say to me on that day, 'Lord, Lord, did we not prophesy in your name, and in your name drive out demons and perform many miracles?'Then I will tell them plainly, 'I never knew you. Away from me, you evildoers!'