Titus 1:14-16

not giving heed to Jewish fables, and commandments of men who turn away from the truth. To the pure all things are pure: but to them that are defiled and unbelieving nothing is pure; but both their mind and their conscience are defiled. They profess that they know God; but by their works they deny him, being abominable, and disobedient, and unto every good work reprobate.