Yeah my bad, it's from Not Afraid :
My world, haters can make like bees with no stingers, and drop dead
No more beef flingers, no more drama from now on, I promise
To focus soley on handling my responsibility’s as a father
So I solemnly swear to always treat this roof like my daughters and raise it
You couldn’t lift a single shingle lonely
Cause the way I feel, I’m strong enough to go to the club
Well, i looked and shingle means "shit", but I still don't see the point of that line. I just hope he doesn't start being like some southern rappers who just put a random line in the middle of a verse.