Unveiling the Societal Impact of Misinterpreting Biblical Text

We are all familiar with the disturbing parts of the Bible, with it's divinely sanctioned violence from the destruction of Jericho in the Old Testament to the destruction of the world in the New, from the passages that justify slavery to the patriarchal views of ancient Israel and the writings in the name of Paul. How have evangelicals tried to salvage these disturbing passages in order to make them not just tame but "good" for readers today?