וַיִּלֹּ֜נוּ כָּל־עֲדַ֤ת בְּנֵֽי־יִשְׂרָאֵל֙ מִֽמָּחֳרָ֔ת עַל־מֹשֶׁ֥ה וְעַֽל־אַהֲרֹ֖ן לֵאמֹ֑ר אַתֶּ֥ם הֲמִתֶּ֖ם אֶת־עַ֥ם יְהוָֽה׃
But on the morrow all the congregation of the children of Israel murmured against Moses and against Aaron, saying: ‘Ye have killed the people of the LORD.’
Read kabbalistic (mystical) interpretation of Numbers 17:6: and classical mystical sources.