1 Timothy 4:1-3

But the [Holy] Spirit explicitly and unmistakably declares that in later times some will turn away from the faith, paying attention instead to deceitful and seductive spirits and doctrines of demons, [misled] by the hypocrisy of liars whose consciences are seared as with a branding iron [leaving them incapable of ethical functioning], who forbid marriage and advocate abstaining from [certain kinds of] foods which God has created to be gratefully shared by those who believe and have [a clear] knowledge of the truth.