Exodus 16:15-20 CSB
When the Israelites saw it, they asked one another, “What is it?” because they didn’t know what it was.
Moses told them, “It is the bread the LORD has given you to eat. This is what the LORD has commanded: ‘Gather as much of it as each person needs to eat. You may take two quarts per individual, according to the number of people each of you has in his tent.’”
So the Israelites did this. Some gathered a lot, some a little. When they measured it by quarts, the person who gathered a lot had no surplus, and the person who gathered a little had no shortage. Each gathered as much as he needed to eat. Moses said to them, “No one is to let any of it remain until morning.” But they didn’t listen to Moses; some people left part of it until morning, and it bred worms and stank. Therefore Moses was angry with them.
CSB: Christian Standard Bible