The Israelites camp at Rephidim and Yahweh provides them water. They are attacked by a local tribe and they win through Yahweh’s assistance.
Exodus 16: Mana and Quail
The Israelites grumble that they have nothing to eat. Yahweh provides them quail at night and manna in the morning to make bread. As a test of their faith, Yahweh tells them to take only enough manna for one day; two days before the sabbath.