The day you break that oath will be the last your eyes shall ever see.
4 seconds sound clip from the The Ten Commandments (1956) movie soundboard.
You can hear this line at 00:16:54.605 in the Blu-ray version of the movie.
Quote context
[...]
- My mother and her mother before her were branded to the Pharaoh's service.
- I will not see you make this son of slaves a prince of Egypt.
- Fill the ark with water. Sink it into silence.
- The day you break that oath will be the last your eyes shall ever see.
- And because I drew you from the water, you shall be called Moses. Moses! Moses!
- He proclaims his coming from afar, does he not, my son?
- Such favor with the people can be dangerous, Great Sethi.
- To whom, Ramses? To me or to you?
- It would not be the first time that fame has turned a prince against his Pharaoh.
- Or that envy has turned a brother against his brother.
[...]