"At that moment a voice was heard from the inmost shrine: ‘Thus far and no farther.’ Verily We bear witness to that which they have done and now are doing.”

 

"A reference to some of the already quoted utterances of Bahá’u’lláh and ‘Abdu’l‑Bahá will surely suffice to establish, beyond the shadow of a doubt, the truth of this cardinal principle. Might not the following passage of the Hidden Words be, likewise, construed as an allegorical allusion to the progressiveness of Divine Revelation and an admission by its Author that the Message with which He has been entrusted is not the final and ultimate expression of the will and guidance of the Almighty? “O Son of Justice! In the night-season the beauty of the immortal Being hath repaired from the emerald height of fidelity unto the Sadratu’l-Muntahá, and wept with such a weeping that the concourse on high and the dwellers of the realms above wailed at His lamenting. Whereupon there was asked, Why the wailing and weeping? He made reply: As bidden I waited expectant upon the hill of faithfulness, yet inhaled not from them that dwell on earth the fragrance of fidelity. Then summoned to return I beheld, and lo! certain doves of holiness were sore tried within the claws of the dogs of earth. Thereupon the Maid of heaven hastened forth unveiled and resplendent from Her mystic mansion, and asked of their names, and all were told but one. And when urged, the first letter thereof was uttered, whereupon the dwellers of the celestial chambers rushed forth out of their habitation of glory. And whilst the second letter was pronounced they fell down, one and all, upon the dust. At that moment a voice was heard from the inmost shrine: ‘Thus far and no farther.’ Verily We bear witness to that which they have done and now are doing.”

Bahá’u’lláh cited by Shoghi Effendi

(The World Order of Bahá’u’lláh)
www.bahai.org/r/835335803