Rashi on Numbers 27:14/רש"י על במדבר כ״ז:י״ד

1המה מי מריבת קדש THEY, THE WATERS OF MERIBA IN KADESH — they alone were the cause of their death: there was no other sin in them. — Another explanation is: it was they (the waters) which were the cause of their rebellion at Marah (Exodus 16:23-24), it was they which made them rebel at the Red Sea (Exodus 14:11—12) and yet it was they which made them rebel here in the wilderness of Zin.