The Bahá’í Faith began with the mission entrusted by God to two Divine Messengers—the Báb and Bahá’u’lláh. Today, the distinctive unity of the Faith They founded stems from explicit instructions given by Bahá’u’lláh that have assured the continuity of guidance following His passing. This line of succession, referred to as the Covenant, went from Bahá’u’lláh to His Son ‘Abdu’l-Bahá, and then from ‘Abdu’l-Bahá to His grandson, Shoghi Effendi, and the Universal House of Justice, ordained by Bahá’u’lláh. A Bahá’í accepts the divine authority of the Báb and Bahá’u’lláh and of these appointed successors.

Bahá’u’lláh has drawn the circle of unity, He has made a design for the uniting of all the peoples, and for the gathering of them all under the shelter of the tent of universal unity. This is the work of the Divine Bounty, and we must all strive with heart and soul until we have the reality of unity in our midst, and as we work, so will strength be given unto us.

— ‘Abdu’l-Bahá