- You lying adder! You'll destroy yourself with your own venom if you try to turn Sethi against Moses.
- You would turn Sethi against me.

9 seconds sound clip from the The Ten Commandments (1956) movie soundboard.

You can hear this line at 00:41:46.728 in the Blu-ray version of the movie.

Quote context

[...]

- He can tell me that when he arrives.

- He will not be here, my father.

- What? I sent for both of you.

- His word is that he cannot attend you, being pressed by other matters.

- Did you hear that? Other matters?

(Egyptian gong clanging)

- My escort.

- I will ride with you, my son, to see what rears itself in Goshen, a city or treason.

- You lying adder! You'll destroy yourself with your own venom if you try to turn Sethi against Moses.

- You would turn Sethi against me.

- Remember, my sweet, that you must be wife to the next Pharaoh, that you're going to be mine, all mine, like my dog or my horse or my falcon. Only I will love you more, and trust you less.

- You will never do the things to me you would have done to Moses.

- I know you, my sweet. You're a sharp-clawed, treacherous little peacock.

- But you're food for the gods, and I'm going to have all of you.

- None of me.

[...]