To be biblically illiterate is to be biblically incompetent. I’m not pointing fingers. This is a fact observed in scripture itself about people who didn’t know what they were doing when "handling" the Word of God! A great admonishment for me to study the Bible myself ! So I do.
2 Tim. 3:16-17 says, “All Scripture is given by inspiration of God,
and is profitable for doctrine, for reproof, for correction, for instruction
in righteousness, that the man of God may be complete,
thoroughly equipped for every good work.”
That passage alone is Bible study enough to know that we NEED to study the Bible!