The Kitáb-i-Aqdas - The Most Holy Book
Index term: promises of former Dispensations fulfilled, under Revelation of Bahá’u’lláh
k80.
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."
k142.
Verily, He [The Báb] revealed certain laws so that, in this Dispensation, the Pen of the Most High might have no need to move in aught but the glorification of His own transcendent Station and His most effulgent Beauty. Since, however, We have wished to evidence Our bounty unto you, We have, through the power of truth, set forth these laws with clarity and mitigated what We desire you to observe. He, verily, is the Munificent, the Generous.
n156.
tribute to this Revelation, from the Pen of Him Who was My Herald
The “tribute” that Bahá’u’lláh quotes in this passage is from the Arabic Bayán.
n158.
It is unlawful to enter into marriage save with a believer in the Bayán. Should only one party to a marriage embrace this Cause, his or her possessions will become unlawful to the other
The passage of the Bayán which Bahá’u’lláh here quotes draws the attention of the believers to the imminence of the coming of "Him Whom God will make manifest". Its prohibition of marriage with a non-Bábí­ and its provision that the property of a husband or wife who embraced the Faith could not lawfully pass to the non-Bábí­ spouse were explicitly held in abeyance by the Báb, and were subsequently annulled by Bahá’u’lláh before they could come into effect. Bahá’u’lláh, in quoting this law, points to the fact that, in revealing it, the Báb had clearly anticipated the possibility that the Cause of Bahá’u’lláh would rise to prominence before that of the Báb Himself.
In God Passes By Shoghi Effendi points out that the Bayán "should be regarded primarily as a eulogy of the Promised One rather than a code of laws and ordinances designed to be a permanent guide to future generations". "Designedly severe in the rules and regulations it imposed," he continues, "revolutionizing in the principles it instilled, calculated to awaken from their age-long torpor the clergy and the people, and to administer a sudden and fatal blow to obsolete and corrupt institutions, it proclaimed, through its drastic provisions, the advent of the anticipated Day, the Day when 'the Summoner shall summon to a stern business', when He will 'demolish whatever hath been before Him, even as the Apostle of God demolished the ways of those that preceded Him'" (see also note 109).
n160.
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!
n185.
the School of Transcendent Oneness
In this verse and the ones which immediately follow it, Bahá’u’lláh confronts one of the reasons some of the Bábí­s rejected His claim to be the Promised One of the Bayán. Their rejection was based on a Tablet addressed by the Báb to "Him Who will be made manifest" on the reverse side of which the Báb had written: “May the glances of Him Whom God shall make manifest illumine this letter at the primary school.” This Tablet is published in Selections from the Writings of the Báb.
These Bábí­s maintained that, since Bahá’u’lláh was two years older than the Báb, it was not possible for Him to receive this Tablet “at the primary school”.
Bahá’u’lláh here explains that the reference is to events transpiring in the spiritual worlds beyond this plane of existence.