Some conclusions can be drawn from this fundamental belief (that they are renewed). First, all religions are divine in essence and consequently there are no religions which contradict or exclude each other, but only one indivisible divine religion which is renewed periodically and according to the requirements of the age, in cycles of about a thousand years: "Our command was but one word." It is therefore hardly surprising if many of Baha'u'llah's teachings are to be found in former religions either expressly or in an embryonic form. As 'Abdul-Baha says, the Baha'i Faith is "not a new path to immortality". On account of this transcendent oneness of all religions, Baha'u'llah exhorted His people to associate with followers of all religions in a spirit of loving-kindness and to make of religion a cause of harmony and peace, not of discord and strife, of hate and division. (25:1)

End of Quote

The Light Shineth in Darkness
Udo Schaefer