If you don't want to know the circumstances surrounding Saturday's entry in this slideshow, then don't read any further...
[spoiler]Saturday's quote:
Ep #897 (1969) - Barnabas - 'Do you understand what MUST be done?'
From "Robservations 4/17/03 - #897-898 - Terror For Megan; David, Book-Keeper"
Barnabas, pleased with himself, opens the secret bookcase, turns off a tape recorder, rewinds the tape and plays it back: "There is no margin for error. Punishment is necessary", it says over and over. He turns to someone and asks, "Do you understand what must be done?" He's speaking to Philip, telling him to go and see that it is done. Philip, walking like an automaton, leaves the secret room and the Old House. We continue to hear the tape, and Barnabas smiles.
[/spoiler]
The Robservations references the quote perfectly...
And this is the second quote from this ep. The first (Jenny's Ghost - 'I cannot help you but he can. You MUST find him!') was back on February 17th of 2021.