Final answer:
Priests during the Opet Festival were responsible for leading temple rituals, conducting grand processions with divine images, participating in communal feasts, and performing purification and sacrifice ceremonies integral to the festivities.
Step-by-step explanation:
During the Opet Festival, priests played significant roles in conducting religious ceremonies. These ceremonies included a grand procession of divine images and elaborate religious festivals through the city. The priests were involved with temple rituals such as serving meals to the gods, orchestrating music, and ensuring gods were given their customary portion of sacrifices, which was followed by communal feasting among the temple staff and the king. The priests were also responsible for carrying out sacred activities like purification, sacrifices, and choral dances that were integral to the festivities. Additionally, they may have been tasked with ensuring the proper conduct of participants and managing the resources utilized during the festival such as water for purification rites.