Exodus 16:15-16
Exodus 16:15-16 NIV
When the Israelites saw it, they said to each other, “What is it?” For they did not know what it was. Moses said to them, “It is the bread the LORD has given you to eat. This is what the LORD has commanded: ‘Everyone is to gather as much as they need. Take an omer for each person you have in your tent.’ ”