Exodus 16:19

This is the thing which the LORD has commanded: ‘Gather of it everyone according to his eating; an omer a head, according to the number of your persons, you shall take it, every man for those who are in his tent.’”

The children of Israel did so, and some gathered more, some less.

When they measured it with an omer, he who gathered much had nothing over, and he who gathered little had no lack. They each gathered according to his eating.

Notwithstanding they didn’t listen to Moses, but some of them left of it until the morning, so it bred worms and became foul; and Moses was angry with them.

They gathered it morning by morning, everyone according to his eating. When the sun grew hot, it melted.

On the sixth day, they gathered twice as much bread, two omers for each one; and all the rulers of the congregation came and told Moses.