Disobedience to God: when he Struck the Rock

Then Moses raised his hand and struck the rock twice with his staff, so that a great amount of water gushed out, and the congregation and their livestock were able to drink.

And at Mount Hor, near the border of the land of Edom, the LORD said to Moses and Aaron,

“Aaron will be gathered to his people; he will not enter the land that I have given the Israelites, because both of you rebelled against My command at the waters of Meribah.