Rashi on Ki Sisa 33:12

English: ראה אתה אמר אלי SEE. THOU SAYEST UNTO ME — Set Thy eyes and Thy heart to Thy own words (Think for a moment of what Thou, Thyself, hast told me) אתה אמר אלי וגו׳ ואתה לא הודעתני וגו׳ THOU SAYEST UNTO ME [BRING UP THIS PEOPLE] AND NEVERTHELESS THOU HAST NOT LET ME KNOW [WHOM THOU WILT SEND WITH ME] — for what You have said to me (Exodus 23:20) “And I will send an angel before thee” is not “letting me know”, for I am not satisfied with it. ואתה אמרת ידעתיך בשם YET THOU HAST SAID, I HAVE KNOWN THEE BY NAME — I have distinguished you from all other human beings by a characteristic (שם) which shows my importance in Thy eyes, for, see, Thou hast said to me, (Exodus 19:9) “Behold, I come unto thee i