JA,
The Bible contains errors, this is a fact. 2 Timothy 3:16 says: "All Scripture is God breathed and usefull for teaching."
Are we to assume that what we have today as reference to the Scriptures are translated accurately from the original manuscripts?
If what we have today is in error as far as the Bible, how do we know that the original manuscripts are also in error. 2 Timothy 3:16 may still hold true if the originals were without error. How do we know for sure?
I am still waiting for more references from you as far as proof that the Bible teaches the earth is flat. The Scripture in Matthew you qouted is far from sufficient evidence.