"He calleth aloud betwixt earth and heaven, saying: The Promised Day is come."

"O ‘Alí! Woes and sorrows are powerless to restrain thy Lord, the All-Merciful. Indeed He hath risen to champion the Cause of God in such wise that neither the overpowering might of the world nor the tyranny of the nations can ever alarm Him. He calleth aloud betwixt earth and heaven, saying: The Promised Day is come. The Lord of creation proclaimeth: Verily, there is no God besides Me, the Almighty, the All-Bountiful.

O ‘Alí! The immature wish to put out the light of God with their mouths and to extinguish by their acts the flame in the Burning Bush. Say, wretched indeed is your plight, O ye embodiments of delusion. Fear ye God and reject not the heavenly grace which hath shed radiance upon all regions. Say, He Who is the Exponent of the hidden Name hath appeared, did ye but know it. He Whose advent hath been foretold in the heavenly Scriptures is come, could ye but understand it. The world’s horizon is illumined by the splendours of this Most Great Revelation. Haste ye with radiant hearts and be not of them that are bereft of understanding. The appointed Hour hath struck and mankind is laid low. Unto this bear witness the honoured servants of God."

-Bahá'u'lláh, Tablets of Bahá’u’lláh Revealed After the Kitáb-i-Aqdas, pp. 243-244