Numbers 20:10-12
He and Aaron gathered the assembly together in front of the rock and Moses said to them, "Listen, you rebels, must we bring you water out of this rock?"
Then Moses raised his arm and struck the rock twice with his staff. Water gushed out, and the community and their livestock drank.
But the LORD said to Moses and Aaron, "Because you did not trust in me enough to honor me as holy in the sight of the Israelites, you will not bring this community into the land I give them."