From today's devotional
Paul writes against any philosophy of life based only on human ideas and experiences. Paul himself was a gifted philosopher, so he is not condemning philosophy. He is condemning teaching that credits humanity, not Christ, with being the answer to life's problems. That approach becomes a false religion. There are many man-made approaches to life's problems that totally disregard God. To resist heresy you must use your mind, keep your eyes on Christ, and study God's Word.