Genesis 2-3 - The story of creation.
The Hope was that God would create light.
Matthew 24:37-38 - No One knows the day and hour.
The Hope was that everything will be fine, even if something go wrong
Exodus 9:13-14 - Hail.
The Hope was that to let the people go and worship God.
Exodus 15:22-27 - Bitter Water.
The Hope was that the story was that God would provide fresh water for them.