Baha’u’llah has come “for the education and training of all humanity”

… Baha’u’llah has manifested for the education and training of all humanity. He is the Teacher of all, whether rich or poor, black or white, oriental or occidental, northern or southern. 

- ‘Abdu’l-Baha (From a Tablet to Mr. and Mrs. Ostburg, Boston, Mass; Star of the West, vol. 2, no. 5, June 5, 1911)

“The Revelation of Baha’u’llah is, in relation to the body of the world, as the spirit of man is to his body.”

The Revelation of Baha’u’llah is, in relation to the body of the world, as the spirit of man is to his body. In relation to the body of the world (humanity) Divinity is as the light within a lantern. In relation to the soil of the hearts, it is the quickening shower. In relation to the spiritual growth of the trees, it is the vernal breeze; and in relation to the recovery of the diseased body politic, it is a quick acting remedy, because it is the cause of the oneness of the world of humanity. It is love among all mankind. It is a bond which unites all the religions. It is the unity which welds together all the races. It is the connection between all the countries. It is universal peace among the nations. It is universal peace among all the peoples. It is the universal peace which will bring together all nativities. And undoubtedly it is the spirit of the world. It is the light of the world. Likewise, it is an impetus to the promulgation of knowledge, and it is the cause of agreement of religion with science and reason. 

- ‘Abdu’l-Baha (From a talk in Oakland, California, at the home of Helen Goodall, October 3, 1912; Star of the West, vol. 4, no. 11, September 27, 1913)

Manifestations of God & the station of Baha’u’llah

O Lord! The tongue of my tongue and the heart of my heart and the spirit of my spirit and my outward and inmost beings bear witness to Thy unity and Thy oneness, Thy power and Thine omnipotence, Thy grandeur and Thy sovereignty, and attest Thy glory, loftiness and authority. I testify that Thou art God and that there is none other God besides Thee. From everlasting Thou hast been a treasure hidden from the sight and minds of men and shalt continue to remain the same for ever and ever. The powers of earth can never frustrate Thee, nor can the might of the nations alarm Thee. Thou art the One Who hath unlocked the door of knowledge before the faces of Thy servants that they may recognize Him Who is the Day-Star of Thy Revelation, the Dawning-Place of Thy signs, the Heaven of Thy manifestation and the Sun of Thy divine beauty. In Thy holy Books, in Thy Scriptures and Thy Scrolls Thou hast promised all the peoples of the world that Thou Thyself shalt appear and shalt remove the veils of glory from Thy face, even as Thou didst announce in Thy words unto Thy Friend [Muhammad] through Whom the Day-Star of Revelation shone brightly above the horizon of Hijáz, and the dawning light of divine Truth shed its radiance among all men, proclaiming: ‘The Day when mankind shall stand before the Lord of the worlds.’ [Qur’án 83:6] And before Muhammad Thou didst impart this glad-tiding unto Him Who

“Bahá'u'lláh, like a bright star, rose from the horizon of Persia and shone with the great Light of Guidance”

Thus when hatred and animosity, fighting, slaughtering, and great coldness of heart were governing this world, and darkness had overcome the nations, Bahá'u'lláh, like a bright star, rose from the horizon of Persia and shone with the great Light of Guidance, giving heavenly radiance and establishing the new Teaching. He declared the most human virtues; He manifested the Spiritual powers, and put them into practice in the world around Him. 

- ‘Abdu'l-Baha (From a talk; “Abdu’l-Baha in London”)

Range of people to whom Baha’u’llah addressed Tablets

To emperors, kings, princes and potentates, to rulers, governments, clergy and peoples, whether of the East or of the West, whether Christian, Jew, Muslim, or Zoroastrian, He addressed, for well-nigh fifty years, and in the most tragic circumstances, these priceless pearls of knowledge and wisdom that lay hid within the ocean of His matchless utterance. 

- Shoghi Effendi  (‘The Promised Day Is Come’)

Baha’u’llah is “the Primal Veil of God”

Say, He Whom God shall make manifest is indeed the Primal Veil of God. Above this Veil ye can find nothing other than God, while beneath it ye can discern all things emanating from God. He is the Unseen, the Inaccessible, the Most Exalted, the Best-Beloved.

If ye seek God, it behooveth you to seek Him Whom God shall make manifest, and if ye cherish the desire to dwell in the Ark of Names, ye will be distinguished as the guides to Him Whom God shall make manifest, did ye but believe in Him. Verily then make your hearts the daysprings of His exalted Names as recorded in the Book, and ye shall, even as mirrors placed before the sun, be able to receive enlightenment. 

- The Báb  (From the Kitáb-i-Asmá’ [The Book of Names]; ‘Selections from the Writings of the Báb’)

Bahá'u'lláh became renowned for His learning when He was about thirteen years old

He was extremely kind and generous. He was a great lover of outdoor life, most of His time being spent in the garden or the fields. He had an extraordinary power of attraction, which was felt by all. People always crowded around Him, Ministers and people of the Court would surround Him, and the children also were devoted to Him. When He was only thirteen or fourteen years old He became renowned for His learning. He would converse on any subject and solve any problem presented to Him. In large gatherings He would discuss matters with the 'Ulama (leading mullas) and would explain intricate religious questions. All of them used to listen to Him with the greatest interest.

- 'Abdu'l-Baha  (Quoted by Esslemont in ‘Baha'u'llah and New Era’)