Despite what current trends would have us believe, a godly pastor can be ignorant about pop culture and the latest Internet memes. He can be ignorant about psychology and sociology. He doesn't need to be an expert on world events, social movements, or leadership strategies. Being well versed in movies, music, and sports isn't part of the job description, either, and is often a hindrance to the actual work of ministry. Rather, a pastor must be an expert in the Bible
John MacArthur