Parashas Shemos
וַיֹּ֤אמֶר יְהֹוָה֙ אֶל־מֹשֶׁ֔ה עַתָּ֣ה תִרְאֶ֔ה אֲשֶׁ֥ר אֶֽעֱשֶׂ֖ה לְפַרְעֹ֑ה כִּ֣י בְיָ֤ד חֲזָקָה֙ יְשַׁלְּחֵ֔ם וּבְיָ֣ד חֲזָקָ֔ה יְגָרְשֵׁ֖ם מֵאַרְצֽוֹ׃ {ס}
Then GOD said to Moses, “You shall soon see what I will do to Pharaoh: he shall let them go because of a greater might; indeed, because of a greater might he shall drive them from his land.”
Torah Temimah points to Sanhedrin 111a (verified).
עתה תראה — אמר הקב״ה למשה: חבל על דאבדין ולא משתכחין\ldots אתה אמרת לי בתחלה מה שמך, עכשיו אמרת למה הרעותה לעם הזה.
English: “Now you will see” — the Holy One said to Moshe: Alas for those who are lost and are not found\ldots You said to Me at first “What is Your name?”; now you have said “Why have You done evil to this people?”
Custom
Chazal read the opening of the new section as a rebuke that contrasts Moshe’s questioning with the silent trust of the Avos.