Who am I ?

I am not the car I drive,
Nor the house I live in.
I am not a bank account.
I am no kind of religion.
I am mean, yet kind and lazy,
I can even get loud, and so crazy.
Imperfection is in my blood,
Along with wisdom.
The Royal House is mine,
Along the shores of the Herbrides.
Why was I raised in a shack,
With no electricity?
Mouths say, “I ain’t nobody”.
Jesus knows they lie.
He doused me in the water,
And wrote my name on high.