Numbers 20:10-12

10and Moses and Aaron gathered the assembly before the rock. Moses said to them, “Listen now, you rebels; must we bring you water out of this rock?”

11Then Moses raised his hand [in anger] and with his rod he struck the rock twice [instead of speaking to the rock as the Lord had commanded]. And the water poured out abundantly, and the congregation and their livestock drank [fresh water].

12But the Lord said to Moses and Aaron, “Because you have not believed (trusted) Me, to treat Me as holy in the sight of the sons of Israel, you therefore shall not bring this assembly into the land which I have given them.”