"Dispute not with the One at Whose bidding the letter "B" was created and joined with its mighty foundation."

"Say: O people! Is it your wish to conceal the beauty of the Sun behind the veils of your own selfish desires, or to prevent the Spirit from raising its melodies within this sanctified and luminous breast? Fear ye God, and contend not with Him Who representeth the Godhead. 6 Dispute not with the One at Whose bidding the letter "B" was created and joined with its mighty foundation. Believe in the Messengers of God and His sovereign might, and in the Self of God and His majesty. Follow not those who have repudiated what they had once believed, and who have sought for themselves a station after their own fancy; these, truly, are of the ungodly. Bear ye witness unto that whereunto God Himself hath borne witness, that the company of His favoured ones may be illumined by the words that issue from your lips. Say: We, verily, believe in that which was revealed unto the Apostles of old, in that which hath been revealed, by the power of truth, unto ‘Alí, 7 and in that which is now being revealed from His Throne of glory. Thus doth your Lord instruct you, as a sign of His favour and as a token of His grace that encompasseth all the worlds."


- Bahá'u'lláh, The Summons of the Lord of Hosts, pp. 31-32

6. That is, the letter "E". In all such instances in the Writings where the letters "B" and "E" are mentioned, the Arabic letters are Káf and Nún, the two consonants of the Arabic word Kun, which is the imperative meaning "Be".
7. [The Báb.]