Don't goddesses like vows and stuff?

[He shrugs... but again, knows full well the rites and rituals around the Church of Seiros have very little to do with the being standing before him, if anything.]

How's he holding up, anyway? Physically, I mean. If you need to let him have some rest, I can keep watch. [Byleth trusts him with that task, even if Sothis wouldn't.]