The Mandela Catalogue [Season 4]

Gabriel: You were so close, David. You had it all figured out. The stage was set for you! Yet you still managed to follow the Shepherd...
Dave Lee: ... O'Brien?
Gabriel: I truly have to hand it to you, you managed to live your entire life completely clueless. You are a fool. Your existence has meant nothing. Only a matter of time until I move on to your cop friend. He seems like an easy target.
Dave Lee: You're not real. You're not gonna accomplish anything.
Gabriel: Oh, David... you have already done all of my bidding for me!