Exodus 16:20-22

Amplified Bible

²⁰ But they did not listen to Moses, and some left a supply of it until morning, and it bred worms and became foul and rotten; and Moses was angry with them. ²¹ So they gathered it every morning, each as much as he needed, because when the sun was hot it melted.

The Sabbath Observed

²² Now on the sixth day they gathered twice as much bread, two omers for each person; and all the leaders of the congregation came and told Moses.