The Bahá’í Faith upholds the unity of God, recognizes the
unity of His Prophets, and inculcates the principle of the oneness and
wholeness of the entire human race. It proclaims the necessity and the
inevitability of the unification of mankind, asserts that it is gradually
approaching, and claims that nothing short of the transmuting spirit of God,
working through His chosen Mouthpiece in this day, can ultimately succeed in
bringing it about.
- Shoghi Effendi (Preface to ‘The Promised Day Is Come’)