What do the angels' announcements about Jesus signify?

The angels' announcements play a crucial role in the Christmas narrative, emphasizing the significance of Jesus' birth. Declaring 'good tidings of great joy,' the angels position Jesus' coming as a divine intervention to address humanity’s need for salvation. These heavenly messages marked a shift from the fear associated with the Law, offering grace and hope instead. They signify that through Jesus, God's promise of redemption is fulfilled, and that the joy of salvation is intended for all people, reaffirming the universal scope of the gospel message.