The chapter begins with the death of Miriam, leading to a period of grief and mourning for her.
The Israelites express frustration and anger due to the lack of water, leading them to quarrel with Moses and Aaron.
Moses and Aaron, in their frustration, disobey God's command by striking the rock instead of speaking to it, resulting in severe consequences for their actions.
The disobedience of Moses and Aaron leads to God's judgment, resulting in the decree that they will not lead the people into the Promised Land.
The chapter concludes with the death of Aaron, accompanied by mourning from the entire congregation of Israel.