This is the Day in which He Who held converse with God hath attained the light of the Ancient of Days, and quaffed the pure waters of reunion from this Cup that hath caused the seas to swell. Say: By the one true God! Sinai is circling round the Dayspring of Revelation, while from the heights of the Kingdom the Voice of the Spirit of God is heard proclaiming: "Bestir yourselves, ye proud ones of the earth, and hasten ye unto Him." Carmel hath, in this Day, hastened in longing adoration to attain His court, whilst from the heart of Zion there cometh the cry: "The promise is fulfilled. That which had been announced in the holy Writ of God, the Most Exalted, the Almighty, the Best-Beloved, is made manifest."

Say: This, verily, is the heaven in which the Mother Book is treasured, could ye but comprehend it. He it is Who hath caused the Rock to shout, and the Burning Bush to lift up its voice, upon the Mount rising above the Holy Land, and proclaim: "The Kingdom is God’s, the sovereign Lord of all, the All-Powerful, the Loving!"

O Pen of the Most High! Move Thou upon the Tablet at the bidding of Thy Lord, the Creator of the Heavens, and tell of the time when He Who is the Dayspring of Divine Unity purposed to direct His steps towards the School of Transcendent Oneness; haply the pure in heart may gain thereby a glimpse, be it as small as a needle’s eye, of the mysteries of Thy Lord, the Almighty, the Omniscient, that lie concealed behind the veils. Say: We, indeed, set foot within the School of inner meaning and explanation when all created things were unaware. We saw the words sent down by Him Who is the All-Merciful, and We accepted the verses of God, the Help in Peril, the Self-Subsisting, which He [The Báb] presented unto Us, and hearkened unto that which He had solemnly affirmed in the Tablet. This we assuredly did behold. And We assented to His wish through Our behest, for truly We are potent to command.

O people of the Bayán! We, verily, set foot within the School of God when ye lay slumbering; and We perused the Tablet while ye were fast asleep. By the one true God! We read the Tablet ere it was revealed, while ye were unaware, and We had perfect knowledge of the Book when ye were yet unborn. These words are to your measure, not to God’s. To this testifieth that which is enshrined within His knowledge, if ye be of them that comprehend; and to this the tongue of the Almighty doth bear witness, if ye be of those who understand. I swear by God, were We to lift the veil, ye would be dumbfounded.

Take heed that ye dispute not idly concerning the Almighty and His Cause, for lo! He hath appeared amongst you invested with a Revelation so great as to encompass all things, whether of the past or of the future. Were We to address Our theme by speaking in the language of the inmates of the Kingdom, We would say: "In truth, God created that School ere He created heaven and earth, and We entered it before the letters B and E were joined and knit together." Such is the language of Our servants in Our Kingdom; consider what the tongue of the dwellers of Our exalted Dominion would utter, for We have taught them Our knowledge and have revealed to them whatever had lain hidden in God’s wisdom. Imagine then what the Tongue of Might and Grandeur would utter in His All-Glorious Abode!

He Who held converse with God
This is a traditional Jewish and Islamic title of Moses. Bahá’u’lláh states that with the coming of His Revelation “human ears have been privileged to hear what He Who conversed with God heard upon Sinai".

Verily, there is none other God besides Me
The Bahá’í­ Writings contain many passages that elucidate the nature of the Manifestation and His relationship to God. Bahá’u’lláh underlines the unique and transcendent nature of the Godhead. He explains that “since there can be no tie of direct intercourse to bind the one true God with His creation” God ordains that “in every age and dispensation a pure and stainless Soul be made manifest in the kingdoms of earth and heaven”. This “mysterious and ethereal Being”, the Manifestation of God, has a human nature which pertains to “the world of matter” and a spiritual nature “born of the substance of God Himself”. He is also endowed with a “double station”:

The first station, which is related to His innermost reality, representeth Him as One Whose voice is the voice of God Himself . . . The second station is the human station, exemplified by the following verses: "I am but a man like you." "Say, praise be to my Lord! Am I more than a man, an apostle?”

Bahá’u’lláh also affirms that, in the spiritual realm, there is an "essential unity" between all the Manifestations of God. They all reveal the "Beauty of God", manifest His names and attributes, and give utterance to His Revelation. In this regard, He states:

Were any of the all-embracing Manifestations of God to declare: "I am God", He, verily, speaketh the truth, and no doubt attacheth thereto. For it hath been repeatedly demonstrated that through their Revelation, their attributes and names, the Revelation of God, His names and His attributes, are made manifest in the world . . .

While the Manifestations reveal the names and attributes of God and are the means by which humanity has access to the knowledge of God and His Revelation, Shoghi Effendi states that the Manifestations should "never . . . be identified with that invisible Reality, the Essence of Divinity itself". In relation to Bahá’u’lláh, the Guardian wrote that the "human temple that has been the vehicle of so overpowering a Revelation" is not to be identified with the "Reality" of God.
Concerning the uniqueness of Bahá’u’lláh’s station and the greatness of His Revelation, Shoghi Effendi affirms that the prophetic statements concerning the "Day of God", found in the Sacred Scriptures of past Dispensations, are fulfilled by the advent of Bahá’u’lláh:

To Israel He was neither more nor less than the incarnation of the "Everlasting Father", the "Lord of Hosts" come down "with ten thousands of saints"; to Christendom Christ returned "in the glory of the Father"; to Shí­'ah Islám the return of the Imám Husayn; to Sunní­ Islám the descent of the "Spirit of God" (Jesus Christ); to the Zoroastrians the promised Sháh-Bahrám; to the Hindus the reincarnation of Krishna; to the Buddhists the fifth Buddha.

Bahá’u’lláh describes the station of "Divinity" which He shares with all the Manifestations of God as

. . . the station in which one dieth to himself and liveth in God. Divinity, whenever I mention it, indicateth My complete and absolute self-effacement. This is the station in which I have no control over mine own weal or woe nor over my life nor over my resurrection.

And, regarding His own relationship to God, He testifies:

When I contemplate, O my God, the relationship that bindeth me to Thee, I am moved to proclaim to all created things "verily I am God"; and when I consider my own self, lo, I find it coarser than clay!