Confiteor (Catholic prayer)

I confess to almighty God and to you, my brothers [and sisters], that I have greatly sinned, in my thoughts and in my words, in what I have done and in what I have failed to do, through my fault, through my fault, through my most grievous fault; therefore I ask blessed Mary ever-Virgin, all the Angels and Saints, and you, my brothers [and sisters], to pray for me to the Lord our God.