וַיֹּ֣אמֶר אַהֲרֹ֔ן אַל־יִ֥חַר אַ֖ף אֲדֹנִ֑י אַתָּה֙ יָדַ֣עְתָּ אֶת־הָעָ֔ם כִּ֥י בְרָ֖ע הֽוּא׃
And Aaron said: ‘Let not the anger of my lord wax hot; thou knowest the people, that they are set on evil.
Read kabbalistic (mystical) interpretation of Exodus 32:22: and classical mystical sources.