They profess that they know God; but in works they deny him, being abominable, and disobedient, and unto every good work reprobate.
All Commentaries on Titus 1:16 Go To Titus 1
But he that has a weak soul makes everything unclean, and if there be set abroad a scrupulous inquiry into what is clean or unclean, he will touch nothing…. Yet Paul says not so; he turns the whole matter upon themselves. For nothing is unclean, he says, but themselves, their mind and their conscience; and nothing is more unclean than these; but an evil will is unclean.