May 25

O Angel of light! Sound a blast upon the trumpet at the advent of this Revelation, for the letter Há’ hath been joined to the letter of ancient glory. [1] Praise be to Thee, O Thou Who art “He”, O Thou besides Whom there is none but “He”! 
- Baha’u’llah  (‘Days of Remembrance’)
[1] That is, the letter “B” in the name “Bahá”.