וְעֵינֵיכֶ֖ם תִּרְאֶ֑ינָה וְאַתֶּ֤ם תֹּֽאמְרוּ֙ יִגְדַּ֣ל יְהוָ֔ה מֵעַ֖ל לִגְב֥וּל יִשְׂרָאֵֽל׃
And your eyes shall see, And ye shall say: ‘The LORD is great beyond the border of Israel.’
Read halakhic rulings (Jewish law) on Malachi 1:5: and classical halakhic sources.