A cautionary tale

32 They angered him at the waters of Mer′ibah [(מְרִיבָ֑ה)],
    and it went ill with Moses on their account;
33 for they made his spirit bitter [(כִּֽי־הִמְר֥וּ אֶת־רוּחֹ֑ו)],
    and he spoke words that were rash.

     Ps 106:32-33, RSV.