King James Version (KJV)
Thus shall they know that I the LORD their God {am} with them, and {that} they, {even} the house of Israel, {are} my people, saith the Lord GOD.
Modern English
They will know that I, Yahweh, their God am with them, and that they, the house of Israel, are my people, says the Lord Yahweh.
Hebrew
וְיָדְע֗וּ כִּ֣י אֲנִ֧י יְהוָ֛ה אֱלֹהֵיהֶ֖ם אִתָּ֑ם וְהֵ֗מָּה עַמִּי֙ בֵּ֣ית יִשְׂרָאֵ֔ל נְאֻ֖ם אֲדֹנָ֥י יְהוִֽה׃
vyadʿv kiy ʾaniy yhvah ʾeloheyhem ʾitam vhemah ʿamiy beyt yishraʾel nʾum ʾadonay yhvih