LVII. That Worldly Things are Absolutely to Be Avoided.
If certain teachers, while looking for your gifts or fearing your persons, relax individual things to you, not only do I not grieve, but I am compelled to speak the truth. You are going to vain shows with the crowd of the evil one, where Satan is at work in the circus with din. You persuade yourself that everything that shall please you is lawful. You are the offspring of the Highest, mingled with the sons of the devil. Do you wish to see the former things which you have renounced?
Are you again conversant with them? What shall the Anointed One profit you? Or if it is permitted, on account of weakness, that you foolishly profane...Love not the world, nor its contents. Such is God's word, and it seems good to you. You observe man's command, and shun God's. You trusted to the gift whereby the teachers shut up their mouths, that they may be silent, and not tell you the divine commands; while I speak the truth, as you are bound look to the Highest. Assign yourself as a follower to Him whose son you were.
If you seek to live, being a believing man, as do the Gentiles, the joys of the world remove you from the grace of Christ. With an undisciplined mind you seek what you presume to be easily lawful, both your dear actors and their musical strains; nor do you care that the offspring of such an one should babble follies. While you think that you are enjoying life, you are improvidently erring. The Highest commands, and you shun His righteous precepts.
Source: Writings (New Advent)