Why would the angel say "be not afraid" because he wants the predator to chill out and...eat them? Are angels piloted by suicidal, parasitic organisms forcing them to be eaten in order for the predator to spread more parasites?
I think the last 4 words of the top comment are throwing us off.
Here's my best recounting:
Angels have eye spots to avoid becoming a tasty meal for a human. When an angel meets a human, the angel's eye spots will scare the human, causing them to flee. In order to talk to a human, it was necessary for the angel to reassure them, "be not afraid".
The first half of your comment made sense in isolation. The second half also made sense in isolation. It was the whole thing put together that didn't make sense.