Numbers 20:6-9

6So Moses and Aaron went from before the assembly to the entrance of the Tent of Meeting and fell on their faces. Then the glory of Adonai appeared to them.

7Adonai spoke to Moses saying,

8“Take the staff and gather the assembly, you and your brother Aaron. Speak to the rock before their eyes, and it will give out its water. You will bring out water from the rock, and you will give the community something to drink, along with their livestock.”

9So Moses took the staff from before the presence of Adonai, just as He had commanded him.