Trivia: When Sam and Dean were flipping through radio stations and finally gave up after hearing nothing but reports of impending disasters, the time on the clock was 11:58PM. Iron Maiden released a song in 1984 called Two Minutes to Midnight which told a story of how mankind's penchant of war would result in his destruction.
When Becky finds Sam and Dean at the hotel, she calls Sam "Sam Winchester". Last season, when the guys meet Chuck, he states that he didn't include their last name in the books.
Dean: Cram it with walnuts, ugly.
Zachariah: This isn't a game, son. Lucifer is powerful in ways that defy description. We need to strike now! Hard and fast! Before he finds his vessel!
Sam: His vessel? Lucifer needs a meat suit?
Zachariah: He is an angel. Those are the rules. And when he touches down, we're talking Four Horseman, red oceans, fiery sky, the greatest hits. You can stop him, Dean, but you need our help.
Dean: You listen to me, you two-face douche. After all that you did, I don't want jack-squat from you!
Nick: If I help you, can you bring back my family?
Sarah/Lucifer: I'm sorry, I can't. But I can give you the next best thing. God did this to you, Nick, and I can give justice, peace.
Nick: How do I know you're telling the truth?
Sarah/Lucifer: Because contrary to popular belief, I don't lie. I don't need to. What I do need is you. Nick, I need you to say yes.
Nick: Then, yes.
Zachariah: How about this? Your friend, Bobby, we know he's gravely injured. Say yes, we'll heal him, say no, he'll never walk again.
Zachariah: Well, how about we heal you from... stage-four stomach cancer?
Dean: (coughs up blood) No.
Zachariah: Then let's get real creative. Let's see how Sam does without his lungs.
(Sam gasps for air)
Zachariah: Are we having fun yet? You're going to say yes, Dean.
Dean: Just kill us.
Zachariah: Kill you? Oh no, I'm just getting started.
(Sam opens the door to a stunned woman)
Sam: You okay, lady?
Becky: Sam? Is it really you?
(she steps closer and puts her hand on his chest) And you're so firm.
Sam: Uh... do I know you?
Becky: No, but I know you. You're Sam Winchester, and you're... (looks at Dean, unimpressed) ...not what I pictured.
Dean: Where's Cass?
Chuck: He's dead. Or gone. The archangel smote the crap out of him. I'm sorry.
Dean: You're sure? I mean, maybe he just vanished into the light or something.
Chuck: Oh, no. He exploded. Like a water balloon of chunky soup.
Chuck: Oh god. Is that a molar? Do I have a molar in my hair? This has been a really stressful day.
Sam: Becky, does he know where it is?
Becky: In a castle on a hill made of forty-two dogs.
Dean: Forty-two dogs?
Sam: Are you sure you got that right?
Becky: It doesn't make sense, but that's what he said. I memorized every word... for you.
Sam: Umm... Becky, can you... quit touching me?
Sam: I brought this on.
Bobby: You're damn right you didn't listen. You were reckless and selfish and arrogant.
Sam: I'm sorry.
Bobby: Oh, yeah? You're sorry you started Armageddon? This kind of thing don't get forgiven, boy. If, by some miracle we pull this off... I want you to lose my number.
Zachariah: I see you told the demons where the sword is.
Dean: (deadpan) Oh, thank God. The angels are here.
Zachariah: You're Michael's vessel. Or rather, his receptacle.
Dean: I'm a vessel?
Zachariah: You're the vessel. Michael's vessel.
Dean: How? Why, why me?
Zachariah: Because you're chosen! It's a great honor, Dean.
Dean: Oh, yeah. Life as an angel condom. That's real fun. I think I'll pass, thanks.
Dean: You need my consent. Michael needs my say-so to ride around in my skin.
Zachariah: Unfortunately, yes.
Dean: Well, there's got to be another way.
Zachariah: There is no other way. There must be a battle. Michael must defeat the Serpent. It is written.
Dean: Yeah, maybe. But, on the other hand... eat me. The answer's no.
Castiel: You two need to be more careful.
Dean: Yeah, I'm starting to get that. Your frat brothers are bigger dicks than I thought.
Sarah/Lucifer: I'm not your wife, Nick. I'm an angel.
Nick: An angel?
Sarah/Lucifer: My name is Lucifer.
Nick: Sure. Naturally. Umm... could you do me a favor there, Satan, and remind me to quit drinking before I go to bed?
Dean: What if we win? I'm serious. I mean, screw the angels and the demons and their crap Apocalypse. They want to fight a war, they can find their own planet. This one's ours, and I say they get the hell off of it. We take 'em all on. We kill the Devil. Hell, we even kill Michael if we have to, but we do it our own damn selves.
Bobby: And how are we supposed to do all this, genius?
Dean: I got no idea. But what I got is a G.E.D. and a "give 'em hell" attitude and I'll figure it out.
Bobby: You are nine kinds of crazy, boy.
Dean: It's been said.
Sweden: November 15, 2009 on Kanal 5
UK: February 10, 2010 on LIVING
Portugal: April 5, 2010 on AXN
Spain: August 23, 2010 on AXN
Germany: January 3, 2011 on Sky Cinema Hits
Czech Republic: July 8, 2011 on Prima COOL
Finland: March 6, 2012 on Sub
Slovakia: April 12, 2013 on Markiza
Becky and Chuck's conversation where he corrects her and tells her the books are real, and Becky says she knew it all along, is heavily paraphrased from the 1999 film Galaxy Quest in which a super-fan of the fictional television show was asked to help the crew for real.
As of this episode, Misha Collins is listed as a star, third in the credits.
Music: Thunderstruck (AC/DC)
Referencing the opening track on the Rolling Stones 1968 album Beggar's Banquet. It was written by Mick Jagger and Keith Richards, as a first-person narrative from the Devil's point of view. It is also a 1968 documentary directed and written by Jean Luc Godard, which also features the Rolling Stones as they rehearse and record the song Sympathy for the Devil.
Meg: These are the days of miracle and wonder, Dean.
Referencing the 1987 Paul Simon song, The Boy in The Bubble. It was based on David Vetter, the boy who suffered from a rare genetic disease that kept his immune system from functioning. He was forced to stay in a sterile environment, confining him to a plastic bubble.
Chuck You went full-on Vader.
Referencing the primary villain of the Star Wars series, played by Dave Prowse, James Earl Jones, Hayden Christensen, Sebastian Shaw, and fencing instructor Bob Anderson. Vader has become an iconic movie villain of the 20th century and is strong in the Force, allowing him to telekinetically manipulate objects and choke others, similar to how Sam telekinetically manipulates demons.
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