They would know that the gods have not abandoned them.
4 seconds sound clip from the Jason and the Argonauts (1963) movie soundboard.
You can hear this line at 00:12:59 in the Blu-ray version of the movie.
Quote context
[...]
- And where will you find this miracle?
- I have heard there is a tree at the end of the world with a fleece of gold hanging in its branches.
- They say it is a gift of the gods.
- It has the power to heal, bring peace and rid the land of plague and famine.
- They would know that the gods have not abandoned them.
- My land would be rich and strong again, as it was before this tyrant, Pelias, murdered my father.
- First, search for this Golden Fleece.
[...]