Rashi on Deuteronomy 5:24/רש"י על דברים ה׳:כ״ד

1ואת תדבר אלינו AND SPEAK THOU (את the feminine form of the pronoun) TO US — you weakened my strength as that of a woman, (cf. Rashi on Numbers 11:15), for I was distressed because of you (because of your words) and you weakened my hands, since I saw that you were not anxious to approach Him out of love. Indeed, was it not better for you to learn from the mouth of the Almighty God, and not to learn from me?!