Exodus 32:34

אל אשר דברתי לך OF WHICH I HAVE SPOKEN UNTO THEE — Here we have an instance of לך connected with the verb דבר being used in place of אליך (i. e. where לך actually means speaking to, not as its usual meaning it, speaking “concerning” someone or “in the interest of” someone as often pointed out by Rashi; cf. e. g., Rashi’s comment on Genesis 28:15). Similar is, (1 Kings 2:19) “to speak unto him (לדבר לו) for Adonijah” (cf. Rashi on that verse). הנה מלאכי BEHOLD, MINE ANGEL [SHALL GO BEFORE THEE] — My messenger, not Myself. וביום פקדי וגו׳ AND IN THE DAY WHEN I VISIT [I WILL VISIT THEIR SIN UPON THEM] — At present I listen to you and will refrain from consuming them all at once — but ever and ever throughout the ages, when I am visiting them for their sins I shall visit them at the same time for a little of this sin in addition to their other sins for which I am then punishing them. Indeed no punishment ever comes upon Israel in which there is not part payment for the sin of the golden calf (cf. Sanhedrin 102a).

וְעַתָּ֞ה לֵ֣ךְ ׀ נְחֵ֣ה אֶת־הָעָ֗ם אֶ֤ל אֲשֶׁר־דִּבַּ֙רְתִּי֙ לָ֔ךְ הִנֵּ֥ה מַלְאָכִ֖י יֵלֵ֣ךְ לְפָנֶ֑יךָ וּבְי֣וֹם פׇּקְדִ֔י וּפָקַדְתִּ֥י עֲלֵהֶ֖ם חַטָּאתָֽם׃

Therefore now go, lead the people to the place of which I have spoken to thee: behold, my angel shall go before thee: nevertheless in the day when I punish, I will punish their sin upon them.