Titus 1:14-16

14 not giving heed to Jewish myths and commandments of men, turning away from the truth.

15 To the pure all things [are] pure. But to those who are defiled and unbelieving nothing [is] pure, but even their mind and conscience is defiled.

16 They profess that they know God, but in [their] works they deny [Him], being abominable and disobedient and reprobate to every good work.