So its interesting because that meeting was almost entirely recap.
The Slane Theocracy is an old nation who focused on human primacy, being like the chosen race. They like... help other human kingdoms come into being and support them.
They have a lot of knowledge and powerful magic, as well as access to "god kin" who you correctly recognized from ep 1 season 2.
Basically all that meeting was was then recapping everything Ainz has done from the perspective of an outsider. "Honyopenyoko" was what Momon called Shalltear before he fought her. Jaldabaoth was Demi Urge, when he attacked the Kingdom.
The theocracy was basically just like "Damn all these powerful things appeared in the Kingdom at the same time. Momon seemed cool but why'd he side with Ainz. Maybe they aren't all related or are enemies".
They also basically came to the conclusion the Kingdom was a failure, and were wary of the Empire (so they sent people to meet with Nix as we saw in the second half.
I think the major take away is just that they have been keeping very close eyes on Ainz, but all their ruses are currently working. And in the first half they gased him up, with their like farseer literally having a mental breakdown over what she saw at the end of last season.
NOTE: The sunlit scripture is who Ainz took out in like episode 3/4. They were like slaughtering Carne village to lure out Gazef. The black scripture was the group who mind controlled Shalltear, but the one who used the item either died or was severly injured. I actually think one of the godkin was there for that fight too but I could be tripping.
Illya Railgun
2024-02-10 03:50:43 +0000 UTC
https://youtu.be/FfeUfFYKsTE?si=vpBXLEBDepXEiWSB
Episode breakdown. Should help with understanding the meeting that happened in the 1st part of the episode