וַיִּצְעֲק֣וּ אֶל־יְהוָ֗ה וַיָּ֨שֶׂם מַֽאֲפֵ֜ל בֵּינֵיכֶ֣ם ׀ וּבֵ֣ין הַמִּצְרִ֗ים וַיָּבֵ֨א עָלָ֤יו אֶת־הַיָּם֙ וַיְכַסֵּ֔הוּ וַתִּרְאֶ֙ינָה֙ עֵינֵיכֶ֔ם אֵ֥ת אֲשֶׁר־עָשִׂ֖יתִי בְּמִצְרָ֑יִם וַתֵּשְׁב֥וּ בַמִּדְבָּ֖ר יָמִ֥ים רַבִּֽים׃
他們向永恆者呼求，祂就使黑暗隔在你們和埃及人中間，又使海水臨到他們，淹沒了他們。你們親眼看見我在埃及所行的事。你們在曠野住了許多日子。
Rashi
And He brought the sea upon “him.”4Why is the singular עָלָיו, upon him used in the text? Rashi goes on to explain its significance. He brought the sea upon each individual among them. If it happened that one of them ran away, in order not to enter the sea, a sea-wave would pursue him and catch him.