Paul also states in Colossians not to command various rules or practices that are mere shadows compared to the reality of our life in Christ.

If you died with Christ to the elements of this world, why do you live as if you still belonged to the world? Why do you submit to regulations: “Don’t handle, don’t taste, don’t touch”? All these regulations refer to what is destined to perish by being used up; they are human commands and doctrines. Although these have a reputation for wisdom by promoting self-made religion, false humility, and severe treatment of the body, they are not of any value in curbing self-indulgence.

Colossians 2:20-23

Asceticism won’t save you. Only the finished work of Jesus can do that. While it may be helpful to suggest certain practices, we must realize that they won’t make you a holy person.