Around the birth of Jesus, angels appeared to Joseph, Mary and the shepherds.
There was a common thread, as well, in what they said.
“Joseph son of David, do not be afraid to take Mary home as your wife…”
Matthew 1:20
But the Angel said to her, “Do not be afraid, Mary, you have found favour with God.”
Luke 1:30
But the Angel said to them (the shepherds), “Do not be afraid. I bring you good news of great joy that will be for all the people.”
Luke 2:9