Here is the one before it
Jules: What does Marcellus Wallace look like?
Brett: What?
Jules: What country you from?
Brett: What?
Jules: What ain't no country I ever heard of! They speak English in What?
Brett: What?
Jules: ENGLISH, MOTHERFUCKER! DO-YOU-SPEAK-IT?
Brett: Yes!
Jules: Then you know what I'm saying!
Brett: Yes!
Jules: Describe what Marcellus Wallace looks like!
Brett: What, I-?
Jules: [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: Go on.
Brett: He's bald...
Jules: Does he look like a bitch?
Brett: What?
[Jules shoots Brett in shoulder]
Jules: DOES HE LOOK LIKE A BITCH?
Brett: No!
Jules: Then why you try to fuck him like a bitch, Brett?
Brett: I didn't.
Jules: Yes you did. Yes you did, Brett. You tried to fuck him. And Marcellus Wallace don't like to be fucked by anybody, except Mrs. Wallace.
Here is is saying later in the movie after his epiphany
There's a passage I got memorized. Ezekiel 25:17. The path of the righteous man is beset on all sides by the inequities of the selfish and the tyranny of evil men. Blessed is he who, in the name of charity and good will, shepherds the weak through the valley of the darkness. For he is truly his brother's keeper and the 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. I been sayin' that shit for years. And if you ever heard it, it meant your ass. I never really questioned what it meant. I thought it was just a cold-blooded thing to say to a motherfucker before you popped a cap in his ass. But I saw some shit this mornin' made me think twice. Now I'm thinkin': it could mean you're the evil man. And I'm the righteous man. And Mr. 9mm here, he's the shepherd protecting my righteous ass in the valley of darkness. Or it could be you're the righteous man and I'm the shepherd and it's the world that's evil and selfish. I'd like that. But that shit ain't the truth. The truth is you're the weak. And I'm the tyranny of evil men. But I'm tryin', Ringo. I'm tryin' real hard to be a shepherd.