The Day of the Covenant is a Bahá'í holy day that honors the appointment of 'Abdu'l-Bahá as the Centre of Bahá'u'lláh's Covenant, safeguarding the faith from division . It was established by 'Abdu'l-Bahá himself, who chose November 26 for this observance instead of his own birthday to avoid overlapping with the Declaration of the Báb . In 2026, it will be observed on November 26 . Bahá'ís mark the day by reflecting on the Covenant's role in preserving the unity of the Bahá'í community and on 'Abdu'l-Bahá's station as the authorized interpreter of Bahá'u'lláh's teachings and the perfect exemplar of the faith .