Why the "There are so many interpretations of the Bible" claim is confused

[Mudhammam]

What people who make this claim don't realize is that the differences over interpretation account for a minuscule fraction of what the Bible really says. So, while the Bible's stance on certain issues might not be wholly precise, the main claims are pretty clear. 

Apparently you haven't read much theology. When theologians look at a word like "beginning" or "day" in Genesis 1, for example, and take away six different meanings for the word - none of which involve the common sense, straightforward, actual definition - you realize how silly a field like theology really is.

See, for example, chapter 17 of book XII in Augustine's Confessions: http://www.newadvent.org/fathers/110112.htm