I'll answer this by giving what I think is the very worst approach. This is the post-modern approach that says the scriptures don't have any one correct interpretation. They can't be read as conveying historic realities. The only meaning they have is whatever meaning is conveyed to the reader as they read. People who approach the Bible this way will often say, "Well, what this means to me is. . ." Everyone's interpretation has just as much validity as the next persons; and everyone's opinion has to be respected.
Paul had a great way of addressing this. In 1 Corinthians 11:19 he says: "For there also have to be factions among you, so that those who are approved may become evident among you." He's saying there must be factions because not everyone can be right. Some are right and some wrong.