As a knight, I took an oath to protect Camelot, King Arthur and Excalibur.

6 seconds sound clip from the Quest for Camelot (1998) movie soundboard.

You can hear this line at 00:03:38.134 in the Blu-ray version of the movie.

Quote context

[...]

- Then, on the very day that you were born, an unexpected hero stepped forth. His name was Arthur. And he was the true king.

- With Excalibur at his side, he led us out of the darkness.

- And together, we built the greatest kingdom on earth. Everyone rejoiced.

- Camelot!

- And so these three rings represent the unity of our kingdom.

- As a knight, I took an oath to protect Camelot, King Arthur and Excalibur.

- The knights are here.

- I must go now, Kayley. The king has summoned his knights for a special day in Camelot.

- Goodbye.

- I'm coming with you, Daddy.

- Yes, when you're old enough, Kayley. I will take you to Camelot, I promise. I love you.

[...]