What did accounts of Jesus resurrection prove to his followers?

Accounts of Jesus' resurrection proved to his followers that he was indeed the Messiah and affirmed his divine nature. It provided them with hope and reassurance of eternal life, reinforcing their faith and commitment to his teachings. The resurrection also served as a pivotal event that empowered them to spread his message and establish the early Christian church. Ultimately, it transformed their understanding of death and life, solidifying their belief in Jesus' victory over sin and mortality.