Sforno on Exodus 32:19/ספורנו על שמות ל״ב:י״ט

1וירא את העגל ואת המחולות ויחר אף משה, Moses’ anger was aroused over the fact that people rejoiced over the damage to themselves they had caused. We find something parallel in Jeremiah 11,15 כי רעתכי אז תעלזי, ”for you exult in performing your evil deeds.” At this point Moses despaired of the people doing teshuvah before being punished. They were no longer fit to receive the Tablets