Matthew Poole and continuators on Titus 1:16

16 They profess that they know God , but in works they deny him , being abominable, disobedient, and unto every good work reprobate .

He is speaking of the Iews who (all of them) professed to know, and to believe one living and true God.

But they lived like Atheists, as if there were no God in the World, Rom. 2.17. to ver. 24.

They are persons justly to be abominated of all good men, [non-Latin text not transcribed], unbelieving in the Gospel; disobedient to the rule of the Law, awkward to, and averse from any good work.

Marginal references: 2 Tim. 3.5.; Or, void of judgment.