Sam Winchester: You can stop him, Jack. You can get your power back.
Jack: No, I-I c-can't. I can't beat him. But you can.
Sam Winchester: What?
Jack: I know you can.
Sam Winchester: No, no, no, no, no. Jack. Don't! Jack! Jack!
Jack: I love you. I love all of you. (Jack stabs himself, but Michael!Dean arrives)
Castiel: What, and you're just gonna leave the rest of us here to burn?
Lucifer: Okay. Hold on a second. Let's slow down, 'cause I... I'm not currently the bad guy here.
Sam Winchester: Yeah, tell that to Maggie.
Jack: What about Maggie?
Sam Winchester: Maggie saw the eyes of the person who killed her... the glowing, red eyes.
Lucifer: You're gonna... you're gonna believe this guy? Come on, man! Sam's a hater! He would say anything to get you on his side.
Jack: Tell me. Tell me the truth!
(Jack compels Lucifer to tell the truth)
Lucifer: She saw me when I was scouting out the bunker. She saw me and she screamed, and then... so I crushed her skull with my bare hands. And it was warm and wet, and I liked it.
Jack: You're not my father. You're a monster.
Sam Winchester: How many are inside?
Castiel: I can hear three. Wait, maybe... maybe four. They're talking about whether Kylie Jenner would make a good mother. The consensus is no.
Dean Winchester: Yeah, well, that's why I'm a Khloé man. All right, we're talking werewolves, which means...
Jack: Silver bullets.
(In Sam's dream...)
Castiel: Dean, you can't possibly eat another. That's your seventh piece.
Dean Winchester: No, it's not.
Jack: Castiel's right. I counted.
Dean Winchester: Okay, first, don't be a narc. And secondly, seven pieces is perfectly normal.
Sam Winchester: Uh, it's really not.
Dean Winchester: It's not even a whole pie.
Jack: Was he always like this?
Mary Winchester: Even as a baby. John and me, we used to call him our little piglet.
Dean Winchester: All right, I'm done.
Mary Winchester: With love.
(Sam and Mary leave the room and Dean signals Cas to send another box of pizza across the table to him)
Jack: Sam thinks you were right, that... that I'm good. He wants me to believe it, and I wanna believe it, too. It's just, I... I've hurt people. I didn't mean to. It was an accident. And I know I should feel bad, and I say I feel bad, but most of the time, I mostly... I don't feel anything. And that's why I think maybe... Maybe I'm a monster.
Mia Vallens: Jack. It doesn't matter what you are. It matters what you do. And even monsters can do good in this world.
Sam Winchester: Our mom, Mary, she's trapped on the other side. If we can get your powers back, maybe we can open that door up. Maybe...
Jack: You wanna save her.
Sam Winchester: Yeah. Yeah, I do. But... if this doesn't work, if that can't happen, that's okay, because I do care about you. But I should've told you. I'm sorry.
Jack: Sam. Why are you being so nice to me?
Sam Winchester: Because I know what it feels like to feel like you don't belong, to feel like there's this darkness inside of you, to be scared of who you are, what you can do. Dean, Cas... my family helped me through that. So now I wanna help you. Because you're not evil, Jack.
Jack: Mom said I could be good, that I had the choice to be good, that it was up to me. But she's dead because of me. I've only been on Earth for a few days, and I've already hurt people. I've already done bad things. And no matter how hard I try, I can't... I can't do the one good, stupid thing you want me to. So... I must be evil, like Lucifer.
Sam Winchester: Dean doesn't hate you. It... Look, sometimes the wires in Dean's head get crossed and... and he gets frustrated, and then he mixes frustration with anger, and... and... and fear.
Jack: Why would he be afraid?
Sam Winchester: Because Dean feels like it's his job to protect everyone. And right now, we need to protect you. But we may also need to protect people from you.