וְיָֽדְעוּ֙ בֵּ֣ית יִשְׂרָאֵ֔ל כִּ֛י אֲנִ֥י יְהוָ֖ה אֱלֹֽהֵיהֶ֑ם מִן־הַיּ֥וֹם הַה֖וּא וָהָֽלְאָה׃
So the house of Israel shall know that I am the LORD their God, from that day and forward.
Read midrashic interpretation of Ezekiel 39:22: and classical rabbinic exegesis.