וַיָּ֤רֶב הָעָם֙ עִם־מֹשֶׁ֔ה וַיֹּ֣אמְר֔וּ תְּנוּ־לָ֥נוּ מַ֖יִם וְנִשְׁתֶּ֑ה וַיֹּ֤אמֶר לָהֶם֙ מֹשֶׁ֔ה מַה־תְּרִיבוּן֙ עִמָּדִ֔י מַה־תְּנַסּ֖וּן אֶת־יְהוָֽה׃
I swarzył się lud z Mojżeszem i rzekli: "Dajcie nam wody, abyśmy pili!" I rzekł do nich Mojżesz: "Czemu swarzycie się ze mną? Czemu doświadczacie Wiekuistego?"
Rashi
מה תנסון TO WHY DO YE TRY [THE LORD] by saying, “Will He be able to give us water in an arid land?”
Chizkuni
תנו לנו מים, “give us water!” although Aaron had not been mentioned in this paragraph at all, the people used the plural mode when addressing Moses, although there had been no need to mention him at all.
Sforno
מה תריבון עמדי?; do you not know that I do not act arbitrarily but only carry out G’d’s orders?