Final answer:
The priest threatens Justine with excommunication and ignominy.
Step-by-step explanation:
The priest threatens Justine with excommunication and ignominy. Excommunication is a punishment that excludes someone from participating in the sacraments and community of the Church. Ignominy refers to disgrace or shame. The priest uses these threats to try to persuade Justine to confess to a crime she didn't commit.