If you don't want to know the circumstances surrounding Wednesday's entry in this slideshow, then don't read any further...
[spoiler]Wednesday's quote:
Ep #915 (1969) - Adlar - 'Enemies MUST be dealt with, that is the law.'
From "Robservations 4/29/03 - 913/914/915 - Warning for Barnabas: A Taste of Vampirism"
Barnabas gazes into the fire. What is happening to me? He leans back in his chair, and begins to dream, thinking, a child cannot demand that someone be killed, he has no right. Oberon appears before him and says, Barnabas, YOU have no right to disobey. Barnabas looks at Oberon, asking, who are you? I am one of them, says Oberon. It was your presence I felt in the room, says Barn. Yes, says Oberon, I was waiting. What do you want from me? asks Barnabas. Originally, you were not one of us, says Oberon, we made you one of us, because you alone could transport our leader through time--we hoped just the act of making you one of us would be enough, that you would be loyal to us, but you are not. You dared to break our law. How? asks Barn. Enemies must be dealt with, that is the law, answers Oberon. "I will not hurt her!" insists Barnabas--the boy is cruel! He is a true Leviathan, says Oberon, he carries in his mind and heart what we believe--you are just an outsider who must constantly prove yourself, because you will never be above suspicion.
[/spoiler]
Before we get to this quote, it needs to be pointed out that the Leviathan who comes to Barnabas in this ep is not Oberon but one named Adlar. That is why Barnabas asks him who he is after he sees him. Barnabas has already interacted with Oberon in the flesh and in dreams and would have recognized him. However, in Robin's defense, nowhere in the ep does Adlar identify himself, plus the credits for the ep were too short to list him. We only know what the Leviathan's name is because it's listed in the DS Program Guide and as part of lists of characters/actors in various PomPress books...
And with that out of the way, the Robservations references the quote perfectly...