King James Version (KJV)
And ye shall know that I {am} the LORD, when I shall bring you into the land of Israel, into the country {for} the which I lifted up mine hand to give it to your fathers.
Modern English
You will know that I am Yahweh when I bring you into the land of Israel, into the country which I swore to give to your fathers.
Hebrew
וִֽידַעְתֶּם֙ כִּֽי־אֲנִ֣י יְהוָ֔ה בַּהֲבִיאִ֥י אֶתְכֶ֖ם אֶל־אַדְמַ֣ת יִשְׂרָאֵ֑ל אֶל־הָאָ֗רֶץ אֲשֶׁ֤ר נָשָׂ֙אתִי֙ אֶת־יָדִ֔י לָתֵ֥ת אוֹתָ֖הּ לַאֲבֽוֹתֵיכֶֽם׃
viydaʿtem kiy-ʾaniy yhvah bahabiyʾiy ʾetkem ʾel-ʾadmat yishraʾel ʾel-haʾareṣ ʾasher nashaʾtiy ʾet-yadiy latet ʾvotah laʾabvoteykem