Numbers 20:9

7The LORD spoke to Moses, saying,

8“Take the rod, and assemble the congregation, you, and Aaron your brother, and speak to the rock before their eyes, that it pour out its water. You shall bring water to them out of the rock; so you shall give the congregation and their livestock drink.”

9Moses took the rod from before the LORD, as he commanded him.

10Moses and Aaron gathered the assembly together before the rock, and he said to them, “Hear now, you rebels! Shall we bring water out of this rock for you?”

11Moses lifted up his hand, and struck the rock with his rod twice, and water came out abundantly. The congregation and their livestock drank.