Exodus 16:11-18

And the LORD spoke to Moses, saying, “I have heard the complaints of the children of Israel. Speak to them, saying, ‘At twilight you shall eat meat, and in the morning you shall be filled with bread. And you shall know that I am the LORD your God.’ ” So it was that quails 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. So when the children of Israel saw it, they said to one another, “What is it?” For they did not know what it was. And Moses said to them, “This is the bread which the LORD has given you to eat. This is the thing which the LORD has commanded: ‘Let every man gather it according to each one’s need, one omer for each person, according to the number of persons; let every man take for those who are in his tent.’ ” Then the children of Israel did so and gathered, some more, some less. So when they measured it by omers, he who gathered much had nothing left over, and he who gathered little had no lack. Every man had gathered according to each one’s need.