[quote=@vancexentan]
The overseer assistant won't tell her to go anywhere unless she approaches him and asks him something about where she should go. Saber volunteered to help keep the peace while his master went inside as of the monk's request.
[/quote]

So the Master has to tell the Servant to remain outside without being told to do that before entering the church? Or will she automatically be told if she enters the room with Rider?
Sorry for all the innate questions, but I'm trying to make sense of it because logically, the Master will not dismiss the Servants willingly in a situation like this.