We ourselves were found sinners (eureqhmen kai autoi amartwloi). Like the Gentiles, Jews who thought they were not sinners, when brought close to Christ, found that they were. Paul felt like the chief of sinners. A minister of sin (amartia diakono). Objective genitive, a minister to sin. An illogical inference. We were sinners already in spite of being Jews. Christ simply revealed to us our sin. God forbid (mh genoito). Literally, "May it not happen." Wish about the future (mh and the optative).