God Will Provide! Exodus 15-17.

 Now when they came to Marah, they could not drink the waters of Marah, for they were bitter. Therefore the name of it was called Marah. And the people complained against Moses, saying, “What shall we drink?” So he cried out to the Lord, and the Lord showed him a tree. When he cast it into the waters, the waters were made sweet. There He made a statute and an ordinance for them, and there He tested them, Then the Lord said to Moses, “Behold, I will rain bread from heaven for you. And the people shall go out and gather a certain quota every day, that I may test them, whether they will walk in My law or not. Also Moses said, “ This shall be seen when the Lord gives you meat to eat in the evening, and in the morning bread to the full; for the Lord hears your complaints which you make against Him. And what are we? Your complaints are not against us but against the Lord.” So it was that quail came up at evening and covered the camp, and in the morning the dew lay all around the camp. And when the layer of dew lifted, there, on the surface of the wilderness, was a small round substance, as fine as frost on the ground. And the house of Israel called its name Manna. And it was like white coriander seed, and the taste of it was like wafers made with honey. And the children of Israel ate manna forty years, until they came to an inhabited land; they ate manna until they came to the border of the land of Canaan.
Exodus 15:23-25,16:4,8,13-14,31,35 - hNKJV