Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ.
All Commentaries on Colossians 2:8 Go To Colossians 2
Cyril of Jerusalem
AD 386
True religion consists of these two elements: pious doctrines and virtuous actions. Neither does God accept doctrines apart from works, nor are works, when divorced from godly doctrine, accepted by God…. The knowledge of doctrines is a precious possession. There is need of a vigilant soul, since there are many who would deceive you by philosophy and vain deceit.