King James Version (KJV)
And the LORD shall be known to Egypt, and the Egyptians shall know the LORD in that day, and shall do sacrifice and oblation; yea, they shall vow a vow unto the LORD, and perform {it}.
Modern English
Yahweh will be known to Egypt, and the Egyptians will know Yahweh in that day. Yes, they will worship with sacrifice and offering, and will vow a vow to Yahweh, and will perform it.
Hebrew
וְנוֹדַ֤ע יְהוָה֙ לְמִצְרַ֔יִם וְיָדְע֥וּ מִצְרַ֛יִם אֶת־יְהוָ֖ה בַּיּ֣וֹם הַה֑וּא וְעָֽבְדוּ֙ זֶ֣בַח וּמִנְחָ֔ה וְנָדְרוּ־נֵ֥דֶר לַֽיהוָ֖ה וְשִׁלֵּֽמוּ׃
vnvodaʿ yhvah lmiṣrayim vyadʿv miṣrayim ʾet-yhvah bayvom hahvʾ vʿabdv zebaḥ vminḥah vnadrv-neder layhvah vshilemv