If your not too rusty with dub teachings, you remember that to commit the unforgivable sin, you had to deny the holy spirits begetting you. It would be like one of the annointed purposely saying................ "I don't want to worship Jehovah anymore nor have any part of him or his son inspite of the fact he annointed me".
In Christendom, it is likewise a denial of the spirit when you know it's for real.
However!!!...one day Freddy Franz got so pissed at Apostates and Slacker dubs, he decided he was gonna write a Watchtower article and kick some major ass! He went so far as to say if a witness smoked ciggaretts till armaggedon, he was a candidate of the Unforgivable Sin. If an unmarried witness couple kept havin sex till armaggedon came, the were candidates too. All kinds of people were candidates of commiting the Unforgivable Sin.....even if these one NEVER denied God or his son.
Below is the Watchtower that he explained it in.
Watchtower 1982 April 1 p. 27 Survival or Destruction at the "Great Tribulation"
Now, the Bible definitely shows that some end up in the symbolic Gehenna ( no chance of a ressurection ) before the 1,000-year Judgment Day begins. .......................... Similarly, unrepentant apostates go, at death, not to Sheol, or Hades, but to Gehenna....( everlasting destruction) (Hebrews 6:4-8; 2 Peter 2:1)
The same is true of dedicated Christians who persist in willful sin or those who "shrink back." (Hebrews 10:26-31, 38, 39) These are merely examples to show that some, even in "this system of things," have committed the sin for which there is no forgiveness, not even in the system of things "to come." (Matthew 12:31, 32; compare 1 John 5:16.) They will, therefore, not be resurrected.
Doncha just luv how ol' Freddy liked to dress up like Jehovah and put on that old gray wig and gray glue-on beard and wear that big white robe then type up these nutty articles like this one? He was a cute little rascle I tell ya.