Only the true Messiah denies his divinity.
4 seconds sound clip from the Life of Brian movie soundboard.
You can hear this line at 01:01:38.865 in the Blu-ray version of the movie.
Quote context
[...]
- I hadn't said a word for 18 years till he came along.
- A miracle! He is the Messiah!
- I say you are, Lord, and I should know. I've followed a few.
- I'm not the Messiah! Will you please listen? I'm not the Messiah! Do you understand? Honestly!
- Only the true Messiah denies his divinity.
- What? Well, what sort of chance does that give me?
- All right, I am the Messiah!
- How shall we fuck off, O Lord?
- Oh, just go away! Leave me alone!
[...]