21:3) which happens to be the fulfillment of the last feast, THE Feast of Tabernacles wherever all nations were welcome in Jerusalem, also known as the Feast of Nations to the 15th of Tishri. This may be a device to precise the supremacy on the heavenly Temple as a sanctuary https://richardfrench.net/what-is-the-new-jerusalem-heaven-on-earth-in-revelation-21-22/