我有罪，用一生来偿还用英语怎么说

I have sinned. I will pay it back with my whole life.

I will redeem myself from guilty(sins) with my rest of life.

i am guilty, i'll pay all my life for it.
or say

I have sinned,and I will pay it back with my whole life.

I'm guilty, and I'll pay it back all my life