Numbers 20:7-9

⁷And the Lord spake unto Moses, saying,

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

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