Они говорят, что знают Бога, а делами отрекаются, будучи гнусны и непокорны и не способны ни к какому доброму делу.
They claim to know God, but by their actions they deny him. They are detestable, disobedient and unfit for doing anything good.
They profess to know God, but they deny him by their works. They are detestable, disobedient, unfit for any good work.
They profess to know God, but by their deeds they deny Him, being detestable and disobedient and worthless for any good deed.
Such people claim they know God, but they deny him by the way they live. They are detestable and disobedient, worthless for doing anything good.
They profess that they know God; but in works they deny him, being abominable, and disobedient, and unto every good work reprobate.
They profess to know God, but in works they deny Him, being [d]abominable, disobedient, and disqualified for every good work.
They profess to know God, but in works deny [him], being abominable, and disobedient, and found worthless as to every good work.