"Mea Culpa" lyrics

What're you saying?
He said "I'm sorry, I committed a sin, I made a mistake. I asked to forgive me, please forgive me."
He said "Mea Culpa," can you put it better?
"I'm saying I'm sorry, I made a mistake, I made, I committed a sin, I made a mistake. And I'm never gonna do it again, I never did it before and I'm never gonna do it again."