Disgruntled leaders test God and the leadership of Moses. Moses repeatedly intercedes for the people and rather than wipe them out, God sends a plague.
God uses a staff and almonds to end the complaining of the Israelites against Aaron.
In frustration, Moses strikes the rock rather than following God’s instructions. As a result, Moses looses his inheritance in the Promised Land.
Because of the grumbling of the Israelites, God sent snakes as punishment but also a way for the people to be saved.