Check out "Live Free" by Lecrae. Lecrae is they guy who proves that modern Christian music actually has lyrical and musical quality. He describes sin so well.
"Sin so bad it's a liar,
It says we on the throne, tells God to retire.
It says He ain't enough, and it says we want more.
It says He ain't just, and it says He ain't Lord.
Sin is the laugh at his power, rape of His mercy,
Mock of His patience; it says he ain't worthy.