The Message of the Bab and Baha'u'llah was proclaimed in 1844 ans 1863 respectively. The purpose proclaimed in these Messages, was the fulfillment of Prophecy, of all the Holy scriptures of the past. All those scriptures in one way or another have promised a 'Day of God' when God will be known by One Name and His people will be one people.
These Messages were rejected. The Bab was executed and Baha'u'llah was imprisoned and banished to end up in Akka Israel. Baha'u'llah then wrote to all the Monarchs, Rulers, Divines and peoples of the world and told them what they must do in this age to find our Unity.
The official writings of the Faith come from the Bab, Baha'u'llah, Abdul'Baha, Shoghi Effendi and the Universal House of Justice, which is located on Mt Carmel in Haifa Israel. (Seat of Universal House of Justice is middle building in OP Picture)
The purpose of this OP is to explore what was offered to Humanity after these Messages were rejected. A path to unity was offered and the results of neglecting to implement the required change, was also foretold.
I will start it with this quote where Baha'u'llah has foretold that a Unity of Nations is required to implement a Lesser Peace.
"...The Great Being, wishing to reveal the prerequisites of the peace and tranquillity of the world and the advancement of its peoples, hath written: The time must come when the imperative necessity for the holding of a vast, an all-embracing assemblage of men will be universally realized. The rulers and kings of the earth must needs attend it, and, participating in its deliberations, must consider such ways and means as will lay the foundations of the world’s Great Peace amongst men. Such a peace demandeth that the Great Powers should resolve, for the sake of the tranquillity of the peoples of the earth, to be fully reconciled among themselves. Should any king take up arms against another, all should unitedly arise and prevent him. If this be done, the nations of the world will no longer require any armaments, except for the purpose of preserving the security of their realms and of maintaining internal order within their territories. This will ensure the peace and composure of every people, government and nation. We fain would hope that the kings and rulers of the earth, the mirrors of the gracious and almighty name of God, may attain unto this station, and shield mankind from the onslaught of tyranny...."
There is much about this day of God in all scriptures. Please share what you know from your scriptures' that would refer to this very day.
Regards Tony