Asceticism: Extreme Application of Rebuked by Paul

If you have died with Christ to the spiritual forces of the world, why, as though you still belonged to the world, do you submit to its regulations: …

Now the Spirit expressly states that in later times some will abandon the faith to follow deceitful spirits and the teachings of demons, …

For physical exercise is of limited value, but godliness is valuable in every way, holding promise for the present life and for the one to come.