When it comes to the Bible Christians have been sorely divided over it long before Baha’u’llah appeared on the scene, almost from the very beginning.
When you talk about the Bible, I think it is important to separate the Jewish Scriptures from the Christian Scriptures, and allow the Jews to speak for themselves on the things in their Scriptures. Now for the Christians being divided about their writings. I agree. They had to decide which writings were from God and which writings weren't. Did they get it right? Is everything in every gospel and in every letter absolutely the "Word of God"? Or, is some of it the words of men on what they wanted to say about Jesus and God?
The gospel writers all say that people saw the risen Jesus. Did they? Baha'is say they meant the story about Jesus having physically come back to life were meant to be taken figuratively. So for 2000 years Christians that believe Jesus literally rose from the dead have been wrong? I don't blame them. I blame God... if the Baha'is are correct. God "inspired" those writers to write a story down about the resurrection of Jesus that was misleading? That caused his followers to think that the apostles saw Jesus, spoke with him, ate with him and touched him... and that Jesus said he was not a ghost but had flesh and bone? I don't blame Christians at all. That's the NT writers fault if that's not true. And God's fault for allowing it to be written and accepted as "The Gospel Truth".
As a pragmatist, if there are no beneficial results to mankind in a concrete way such as bringing people together for the common good then I think the Bible alone has failed miserably, regardless of what you think the correct interpretation of it is.
Jews and Christians have done a lot for their own good and the common good. And, the Bible is still able to make people do some good things. Now, are the Baha'i writings able to bring peace and harmony to the whole world?
A rudimentary principle brought by Baha’u’llah is the oneness of God, the oneness of religion, and the oneness of mankind. His coming is the fulfillment of all Sacred Scriptures of all past religions so why be concerned about the Bible now that we have moved on to the next chapter?
A problem for Baha'is in bringing peace is that they don't believe in the "oneness" of religion. They believe all the other religions are off track. And, Baha'is tell people here in the forum, how their religion is wrong. So, if all the religions are wrong, except the Baha'is, then there is only one correct and true religion.... the Baha'i Faith. That isn't and hasn't gone over very well here in the forum. Baha'is don't believe that all the religions are true and from the One True God, they believe that the Baha'i version and interpretation of what the other religions should believe are one... and a progression. But, as practiced and believed by the followers of the different religions, they are all different and all have contradictory beliefs.
Due to dogmatic interpretations of the Bible by Christian clerics nonsensical doctrines of the church arose such as original sin to name just one. Such superstitions have driven many thoughtful people to conclude there is nothing to any religion or any truth that God even exists. Even when Christians cling to their beliefs based on church doctrines they compartmentalize their lives into what has been called secularism into two compartments; one a religious life on Sunday and the other their ordinary workday life.
In the modern Western world, who doesn't put their religious beliefs aside. Do Baha'is show up at work and proclaim, "The Lord has come! A new day has dawned!"? Or, do they say, "Hi Mabel, here's that report you wanted."
Now for "nonsensical" doctrines? What would you have done 2000 years ago? All you had was the NT to go by. And you were taught to believe that it is the very Word of God. But you and your fellow religious leaders had some questions. If Jesus came to wash away the sin of everybody, and no one is sinless, then what? Is everyone born with some kind of original sin? By what's written in the NT, is that really such a stretch? Is it really "superstitious"? Is it wrong? I would hope so. Been then so is Satan, the resurrection, a literal belief in most or all of the healings and the other "miracles" that Jesus performed. But those "superstitions" are written in the Book. Is that superstitious too? Lots of people would answer that with a big "yes". But not Baha'is. Baha'i believe in the Bible and the NT... just not literally. Which means what? God and or the writers purposefully misled the people? If that was not their intent, it sure backfired. If their intent was that those stories were to be taken as figurative, that sure didn't make it clear. So sure, it's probably all superstitious beliefs... but they are Bible-based beliefs. So I don't blame the Christians. They were misled into believing the Bible and their addition to the Bible, the NT, was the inerrant, literal Word of God.