Exodus 16 tells the story of the Israelites complaining about hunger in the wilderness after leaving Egypt. God hears their grumbling and provides manna from heaven to sustain them. Moses instructs the people to gather only what they need each day, except on the sixth day when they collect double for the Sabbath. Some disobey, leading to spoilage and God's displeasure. The chapter highlights God's provision, the importance of obedience, and the establishment of the Sabbath rest.