וְלֹֽא־יִשְׁמַ֤ע אֲלֵכֶם֙ פַּרְעֹ֔ה וְנָתַתִּ֥י אֶת־יָדִ֖י בְּמִצְרָ֑יִם וְהוֹצֵאתִ֨י אֶת־צִבְאֹתַ֜י אֶת־עַמִּ֤י בְנֵֽי־יִשְׂרָאֵל֙ מֵאֶ֣רֶץ מִצְרַ֔יִם בִּשְׁפָטִ֖ים גְּדֹלִֽים׃
But Pharaoh will not hearken unto you, and I will lay My hand upon Egypt, and bring forth My hosts, My people the children of Israel, out of the land of Egypt, by great judgments.
Read Kabbalistic (mystical) interpretations of Exodus 7:4: Zohar and classical Jewish mystical sources, free online.