Titus 1:15-16

Unto the pure all things are pure: but unto them that are defiled and unbelieving is nothing pure; but even their mind and conscience is defiled. They profess that they know God; but in works they deny him, being abominable, and disobedient, and unto every good work reprobate. Titus 1:15‭-‬16 KJV http://bible.com/1/tit.1.15-16.KJV