The water of Meribah - i. e. “Strife.” The place is called “Meribah in Kadesh” Numbers 27:14, and “Meribah-Kadesh” Deuteronomy 32:51. to distinguish it from the “Meribah” of Exodus 17:2 ff.
And he was sanctified in them - An allusion doubtless to the name “Kadesh” (holy), which though not now bestowed, acquired a new significance from the fact that God here vindicated His own sanctity, punishing Moses and Aaron who had trespassed against it.