לֹ֥א תִירָ֖א מֵהֶ֑ם זָכֹ֣ר תִּזְכֹּ֗ר אֵ֤ת אֲשֶׁר־עָשָׂה֙ יְהוָ֣ה אֱלֹהֶ֔יךָ לְפַרְעֹ֖ה וּלְכָל־מִצְרָֽיִם׃
thou shalt not be afraid of them; thou shalt well remember what the LORD thy God did unto Pharaoh, and unto all Egypt:
Read midrashic interpretation of Deuteronomy 7:18: and classical rabbinic exegesis.