Numbers 20:2-9 - The Waters Of Meribah
2 And there was no water for the congregation: and they assembled themselves together against Moses and against Aaron. 3 And the people strove with Moses, and spake, saying, Would that we had died when our brethren died before Jehovah! 4 And why have ye brought the assembly of Jehovah into this wilderness, that we should die there, we and our beasts? 5 And wherefore have ye made us to come up out of Egypt, to bring us in unto this evil place? it is no place of seed, or of figs, or of vines, or of pomegranates; neither is there any water to drink.
6 And Moses and Aaron went from the presence of the assembly unto the door of the tent of meeting, and fell upon their faces: and the glory of Jehovah appeared unto them. 7 And Jehovah spake unto Moses, saying, 8 Take the rod, and assemble the congregation, thou, and Aaron thy brother, and speak ye unto the rock before their eyes, that it give forth its water; and thou shalt bring forth to them water out of the rock; so thou shalt give the congregation and their cattle drink.
9 And Moses took the rod from before Jehovah, as he commanded him.