The title is found in the Bible, in Hosea 4:6. I hope this is not true for any of us but...... These are God's words as written by the prophet Hosea so we Christians need to be careful. Do we research our own doctrines or study what our church teach ?
Often we believe we are right and other Christians are wrong. But what if we are wrong ? So to be in the safe side, know what we believe.