It's not enough to "believe the Bible." Mormons, JWs, Moonies, and unitarian pentecostals all "believe the Bible." Christians believe what the Bible teaches as well. Now, the foundational creeds of the church are handy summaries of what the Bible teaches concerning God, man, salvation, and eschatlogy. The creeds affirm that our Lord will physically return and we will be raised. The creeds have little to say beyond that, however, concerning the anticipated course of history.
I'm not much into the creeds, primarily because our focus should be on the Scriptures themselves.
in response to my comment It's not enough to "believe the Bible." Mormons, JWs, Moonies, and unitarian pentecostals all "believe the Bible." Christians believe what the Bible teaches as well.
Is it just a coincidence that cults uniformly violate one or more of the standards mentioned in the creeds? Or is it possible that we can learn from godly folks who have gone before us, in order to go further in our own lives? You might enjoy G K Chesterton's short story "The Broken Sword." The villain "read his own Bible" by himself -- and found in it such things as harem keeping! The bottom line is, that we as Christians are a body, we need one another, and we need to read God's word together!