Exodus 7:19-20

7:19 Then the Lord said to Moses, “Tell Aaron, ‘Take your staff and stretch out your hand over Egypt’s waters – over their rivers, over their canals, over their ponds, and over all their reservoirs – so that it becomes blood.’ There will be blood everywhere in the land of Egypt, even in wooden and stone containers.” 7:20 Moses and Aaron did so, just as the Lord had commanded. Moses raised the staff and struck the water that was in the Nile right before the eyes of Pharaoh and his servants, and all the water that was in the Nile was turned to blood.

Numbers 20:8-11

20:8 “Take the staff and assemble the community, you and Aaron your brother, and then speak to the rock before their eyes. It will pour forth its water, and you will bring water out of the rock for them, and so you will give the community and their beasts water to drink.”

20:9 So Moses took the staff from before the Lord, just as he commanded him. 20:10 Then Moses and Aaron gathered the community together in front of the rock, and he said to them, “Listen, you rebels, must we bring water out of this rock for you?” 20:11 Then Moses raised his hand, and struck the rock twice with his staff. And water came out abundantly. So the community drank, and their beasts drank too.