Verse 9 from Luke 2:8-20
An angel of the Lord appeared to them, and the glory of the Lord shone around them, and they were terrified.
Suddenly the surrounding hills burst into flame against the black night and roared with sound! This was doxa, the very radiance of heaven, the light of the face of God that kills any who look up it. Did not Moses and Ezekiel speak of this very thing? The shepherds thought they were dead and so did the animals – men screamed and shouted, sheep bleated loudly in terror, dogs barked wildly and snarled at the light.
Put yourself in the story. These were not fat little cherubs — these were ANGELS. How do you feel watching the sky explode in fire and sound?