Parashas Shemos · Passuk 1:12
וְכַאֲשֶׁר֙ יְעַנּ֣וּ אֹת֔וֹ כֵּ֥ן יִרְבֶּ֖ה וְכֵ֣ן יִפְרֹ֑ץ וַיָּקֻ֕צוּ מִפְּנֵ֖י בְּנֵ֥י יִשְׂרָאֵֽל׃
But the more they were oppressed, the more they increased and spread out, so that the [Egyptians] came to dread the Israelites.
Torah Temimah points to Reish Lakish — Sotah 11a (verified).
כן ירבה וגו׳ — כן רבו ובן פרצו מבעי ליה. אמר ריש לקיש: רוח הקודש מבשרתן כן ירבה וכן יפרוץ.
English: “So he will increase\ldots” — it should have said “so they increased and so they spread.” Reish Lakish said: The Divine Spirit announced to them, “So he will increase and so he will spread.”
Custom — diyuk from future versus past tense.
Chazal teach that the verse itself already proclaimed to the oppressors that their efforts would produce the opposite of their intent.