Numbers 20:8-10

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 Yahweh, 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?”