i would like to know what unique and new revelation bahaullah provided to mankind.
I think like Christianity, the Baha’i Faith is also Person-Centric. Much as what is defined as “New” in Christianity that did not exist before Christ, focusing only on the Semitic prophets of the Hebrew Bible to simplify comprehension of this point. the same is defined as “New” in the Baha’i Revelation.
Here are some example verses from Baha’u’llah’s writings that identify the “Most Great Name” or “Most Great Spirit” as the New feature that appears in this Revelation that was hidden in the past Revelation of Jesus Christ. Here I will focus only on the Most Great Name, perhaps later we can look at the Most Great Spirit.
“This is
His Most Great Name, His Most Exalted Word, and the Dayspring of His Most Excellent Titles, if ye could understand. Nay more, through Him every Fountainhead, every Dawning-place of Divine guidance is made manifest.”
“Let your joy be the joy born of
My Most Great Name, a Name that bringeth rapture to the heart, and filleth with ecstasy the minds of all who have drawn nigh unto God. We, verily, have made music as a ladder for your souls, a means whereby they may be lifted up unto the realm on high; make it not, therefore, as wings to self and passion.”
"By Thy Most Great Name, O Thou Lord of all nations! "
“Thou seest, then, O Thou Who art the Beloved of the world and the Revealer of
the Most Great Name, how He hath come down with the kingdom of His signs, and in a manner that hath caused the atoms of the earth to testify that the whole world hath been filled with these signs.”
“I beseech Thee, by Thy
Most Great Name, to raise in every city a new creation that shall turn towards Thee, and shall remember Thee amidst Thy servants, and shall unfurl by virtue of their utterances and wisdom the ensigns of Thy victory, and shall detach themselves from all created things.”
“I entreat Thee, by Thy
Most Great Name, Whom Thou hast appointed as the unerring Balance among the nations, and Thine infallible Proof unto all men, not to forsake me, nor to abandon me to my corrupt desires.”
“I implore Thee, by Thy
Most Great Name, and Thy most ancient sovereignty, to look upon Thy loved ones whose hearts have been sorely shaken by reason of the troubles that have touched Him Who is the Manifestation of Thine own Self.”
“From eternity the tokens of Thy bounty have encompassed the universe, and the splendors of Thy
Most Great Name have been shed over all created things.”
“Send down, then, O my God, through Thy
Most Great Name, upon Thy loved ones what will, under all conditions, draw them nearer unto Thee.”
“It behoveth you, in this day, to proclaim aloud the
Most Great Name among the nations.”
"Walk thou high above the world of being through the power of the
Most Great Name, that thou mayest become aware of the immemorial mysteries and be acquainted with that wherewith no one is acquainted. "
“And the knowledge of the King of everlasting days can in no wise be attained save by recognizing Him Who is the Bearer of the
Most Great Name. He is, in truth, the Speaker on Sinai Who is now seated upon the throne of Revelation.”