Bera in exile

We heard sura 15 at our Mass this weekend.

Okay okay; we heard the pre-Jubilees version, from Genesis. Abraham and Sarah (and Ishmael fitzAbraham I guess), are in their tents not long after Abraham's circumcision. Three men show up on their way to King Bera's city. Abraham recognises them as honoured guests, and addresses them in the singular.

Sura 15 is clear that they're Celestial angels. Genesis leads away from that: they "stand" (don't hover) and they eat food.

The "Non Apologist" does not accept Rublev's famous icon. But if the three are human and are not the Trinity (Jesus eats food, remember), we cannot say What are they - so, who are they?

Their mission to Bera's city would hint against their being present citizens of that city. But. When they arrive in that city, we do not hear that Bera is still king there.

There seems quite a bit of intertextual strain around Abraham's section of Genesis. Non-Apologist thinks chapter 18 (wherein Sarah is la femme qui rit) is an "insertion". He also wonders if Bera is the leader of the three guests(!).

Had Bera been deposed? Was Abraham's faction of Hebrews a haven for dissidents? This would not be unknown in Hebrew history, even Biblical history, as witness the various Kenites giving succor to the Hebrews. As Kenites might aid the righteous Hebrews later, earlier the Hebrews might have aided righteous gentiles.