I found a jarbled audio file in the game's files called GraveSinEdit.ogg.
I reversed it, and raised the tempo, and it appears to be saying this:
"Oh, these people have committed a grave sin; they have made a god of gold for themselves" probably tying to Scot's religion which seems to be a recurring theme in this game.
Theres also some sounds and events relating to what I'm assuming is golden freddie, and I think so far none of this has been documented yet. There's also zero footage out there of him functioning in game as far as I can tell despite having office/jumpscare renders and a seemingly working state in clickteam. It might be worth making a small video about or something