(5) and every first-born in the land of Egypt shall die, from the first-born of Pharaoh who sits on his throne to the first-born of the slave girl who is behind the millstones; and all the first-born of the cattle.
(2) מבכור פרעה עד בכור השפחה FROM THE FIRSTBORN OF PHARAOH UNTO THE FIRSTBORN OF THE HANDMAID — All who were of less importance than the firstborn of Pharaoh and of more importance than the firstborn of the handmaid are included in this description. And why were the sons of the handmaids stricken? Because they, too, treated them (the Israelites) as slaves and rejoiced at their misery (Midrash Tanchuma, Bo 7).
(3) וכל בכור בהמה AND ALL THE FIRSTBORN OF BEASTS — because they worshipped these as gods. When the Holy One, blessed be He, exacts punishment from a nation, He punishes their gods at the same time (Genesis Rabbah 96:5).
(4) For if you refuse to let My people go, tomorrow I will bring locusts on your territory.
(ה) וְכִסָּה֙ אֶת־עֵ֣ין הָאָ֔רֶץ וְלֹ֥א יוּכַ֖ל לִרְאֹ֣ת אֶת־הָאָ֑רֶץ וְאָכַ֣ל ׀ אֶת־יֶ֣תֶר הַפְּלֵטָ֗ה הַנִּשְׁאֶ֤רֶת לָכֶם֙ מִן־הַבָּרָ֔ד וְאָכַל֙ אֶת־כָּל־הָעֵ֔ץ הַצֹּמֵ֥חַ לָכֶ֖ם מִן־הַשָּׂדֶֽה׃
(5) They shall cover the surface of the land, so that no one will be able to see the land. They shall devour the surviving remnant that was left to you after the hail; and they shall eat away all your trees that grow in the field.
(2) ולא יוכל AND HE — i. e. anyone who is looking — WILL NOT BE ABLE TO SEE THE EARTH; it speaks in (uses) an elliptical expression.
(ו) וּמָלְא֨וּ בָתֶּ֜יךָ וּבָתֵּ֣י כָל־עֲבָדֶיךָ֮ וּבָתֵּ֣י כָל־מִצְרַיִם֒ אֲשֶׁ֨ר לֹֽא־רָא֤וּ אֲבֹתֶ֙יךָ֙ וַאֲב֣וֹת אֲבֹתֶ֔יךָ מִיּ֗וֹם הֱיוֹתָם֙ עַל־הָ֣אֲדָמָ֔ה עַ֖ד הַיּ֣וֹם הַזֶּ֑ה וַיִּ֥פֶן וַיֵּצֵ֖א מֵעִ֥ם פַּרְעֹֽה׃
(6) Moreover, they shall fill your palaces and the houses of all your courtiers and of all the Egyptians—something that neither your fathers nor fathers’ fathers have seen from the day they appeared on earth to this day.’” With that he turned and left Pharaoh’s presence.