"The Bible tells us to, boldly and humbly, and without fear or shame, proclaim the Word of Truth. The unchanging Word of God always overrules anything any man has ever said which contradicts it – no matter how brilliant it may sound. As 1 Peter 1:24-25 says, all men are like grass and their glory is like the flowers of the field. The grass withers and flowers fade…but the Word of the Lord endures forever. Every book we read, every sermon we hear, and every piece of advice we both give and receive must line up clearly and perfectly with the everlasting Word of God." (from a blog I read recently but I'm not sure who the author is)