Why do people lean to their own understandings, when a person points out the many flawed verses in the Bible?

The only part of the bible that we are not to add to or subtract from is the book of revelations. In the other parts of the bible there are errors. The bible has been translated so many time and words mean different things in different languages never mind that words in biblical days meant different things than they mean now. For instance, hell is not eternal, Mary was only a virgin before Jesus was born, Jesus is not God, and so many other errors, but don't expect the churches to fix any of these errors, or they would lose their jobs.