Gwen and Merlin in “Excalibur”

Merlin, what are you doing here?

I've come to ask a favor.

Yes?

I'm not sure how to ask it.

Ask, Merlin. You know I'd grant you anything. (pause) I mean, not anything. Obviously not anything. What is it you want?

I've come to ask for a sword. The strongest sword your father's ever made.

What for?

To save Arthur.