Numbers 20:6-8

⁶And Moses and Aaron went from before the congregation to the entrance of the tent of meeting, and fell upon their faces; and the glory of Jehovah appeared to them.

⁷And Jehovah spoke to Moses, saying,

⁸Take the staff, and gather the assembly together, thou, and Aaron thy brother, and speak ye unto the rock before their eyes, and it shall give its water; and thou shalt bring forth to them water out of the rock, and shalt give the assembly and their beasts drink.