Exodus 16:4-5, 13-16

GOD said to Moses, “I’m going to rain bread down from the skies for you. The people will go out and gather each day’s ration. I’m going to test them to see if they’ll live according to my Teaching or not. On the sixth day, when they prepare what they have gathered, it will turn out to be twice as much as their daily ration.”

That evening quail flew in and covered the camp and in the morning there was a layer of dew all over the camp. When the layer of dew had lifted, there on the wilderness ground was a fine flaky something, fine as frost on the ground. The Israelites took one look and said to one another, man-hu (What is it?). They had no idea what it was.