Rev 21:23 "......for the Glory of God gives it light, and the...

Rev 21:23 "......for the Glory of God gives it light, and the Lamb is its Lamp"

Did you know that the word "Baha'u'llah" translated into English is "Glory of God"?

So, this verse actually reads
".....for Baha'u'llah gives it light, and the Lamb is its Lamp"

So you are correct, Baha'u'llah is not the Lamb, He is the Glory of God itself.

Kam