Mea Culpa

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."