The Baháʼí writings teach that there is but one humanity and all people are equal in the sight of God. The Baháʼí Faith emphasizes the unity of humanity transcending all divisions of race, nation, gender, caste, and social class, while celebrating its diversity. ʻAbdu'l-Bahá states that the unification of mankind has now become "the paramount issue and question in the religious and political conditions of the world." The Baháʼí writings affirm the biological, political, and spiritual unity of mankind. Baháʼu'lláh wrote: