Day of God (61:0)

Every Biblical Prophet announced a coming 'Day of God' to be fulfilled at the 'Time of the End' (61:1)

Christ foretold the coming of the 'Son of Man' and His own Return to fulfill this promise; and in the two major branches of Islam, the coming of the Mahdi and the Return of the 12th Imam is promised (61:2)

Bahá'u'lláh alone has proclaimed His Day to be the promised 'Day of God' spoken of in all of the scriptures. (insight from Mirza Abu'l-Fadl in 'The Bahá'í Proofs') (61:3)

End of Quote

Mixed Sources