Continuity mistake: In the scene at the apartment with Brett, Vincent closes the briefcase and leaves it on the kitchen counter. He continues to smoke until it's almost time to shoot Brett. They shoot Brett and the scene fades out to be continued later. Later we see that after shooting Brett, Vincent is focused on Marvin still in the corner having a panic attack. Jules tells Marvin to knock it off and the man comes out of the bathroom. Jules and Vincent shoot him, then Vincent chides Marvin for not telling them there was someone in the bathroom. Vincent only has his gun in his hand, no briefcase. Jules and Vincent argue about 'the miracle' and they leave. Marvin never leaves the corner until Jules tells him 'let's go'. Nobody has the briefcase.
Trivia: Vincent Vega doesn't have much luck with bathrooms: He emerges from the bathroom at Mia Wallace's place to find her overdosing. He is heavily criticised by Jules in Jimmy's bathroom for soiling the towel. He emerges from the bathroom at the coffee shop to find a robbery is occurring. After he shoots Brett, a guy comes out of the bathroom with a "hand cannon" and tries to shoot him. Finally, he emerges from the bathroom at Butch Coolidge's flat and is shot dead by Butch.
Jules Winnfield: Ezekiel 25:17. 'The path of the righteous man is beset on all sides by the inequities of the selfish and the tyrannies of evil men. Blessed is he, who in the name of charity and good will, shepherds the weak through the valley of darkness. For he is truly his brothers' keeper and finder of lost children. And I will strike down upon thee with great vengeance and furious anger those who attempt to poison and destroy my brothers. And you will know I am the lord when I lay my vengeance upon you.' Now I've been saying that shit for years, and if you've ever heard it, it meant your ass. I never gave much thought to what it meant, I just thought it was a cold blooded thing to say to a mother fucker before I popped a cap in his ass. But I saw some shit this morning that made me think twice. Now I'm thinking it could mean you're the evil man, and I'm the righteous man. And Mr. 9mm here is the shepherd, protecting my righteous ass. Or maybe it means that you're the righteous man, and I'm the shepherd, and it's the world that's evil and selfish. Now I'd like that, but you see that shit ain't the truth. The truth is, YOU'RE the weak, and I'm the tyranny of evil men. But I'm trying, Ringo. I'm trying real hard to be the shepherd.
Jules Winnfield: What does Marcellus Wallace look like?
Jules Winnfield: What country you from?
Jules Winnfield: What ain't no country I ever heard of. They speak English in What?
Jules Winnfield: ENGLISH, MOTHERFUCKER! DO-YOU-SPEAK-IT?
Jules Winnfield: Then you know what I'm saying.
Jules Winnfield: Describe what Marcellus Wallace looks like.
Brett: What, I-?
Jules Winnfield: [pointing his gun.] Say what again. SAY WHAT AGAIN. I dare you, I double dare you, motherfucker. Say what one more goddamn time.
Brett: He's b-b-black.
Jules Winnfield: Go on.
Brett: He's bald.
Jules Winnfield: Does he look like a bitch?
[Jules shoots Brett in shoulder.]
Jules Winnfield: DOES HE LOOK LIKE A BITCH?
Jules Winnfield: Then why you try to fuck him like a bitch, Brett?
Brett: I didn't.
Jules Winnfield: Yes you did. Yes you did, Brett. You tried to fuck him. And Marcellus Wallace don't like to be fuuced by anybody, except Mrs. Wallace.