“Only if you are a Catholic...Bible believers have no problem finding Moses’ seat in the OT...”
~ ~ ~
Please share, where is it, the seat of Moses found in the OT?
The closest anyone can come is Exodus 18:13 which says' "The next day Moses took his seat to serve as judge for the people, and they stood around him from morning till evening."
Note that it references Moses (and his seat) functioning as a Judge, not a teaching authority.