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."