Exodus 16:11-15

GOD spoke to Moses, “I’ve listened to the complaints of the Israelites. Now tell them: ‘At dusk you will eat meat and at dawn you’ll eat your fill of bread; and you’ll realize that I am GOD, your God.’” 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.