One thing that's bothered me for a while about the use of John 6:68 (oddly, this has always been the bigger issue than the rampant replacement of 'whom' with 'where') was it's apparent condemnation by 2 Timothy 4:3.
From the JW bible:
John 6:68 - Simon Peter answered him: “Lord, whom shall we go away to? You have sayings of everlasting life."
2 Timothy 4:3 - For there will be a period of time when they will not put up with the wholesome teaching, but according to their own desires, they will surround themselves with teachers to have their ears tickled.
2 Timothy 4:3 is often used in condemnation of "false religion" citing other organization's acceptance of people who violate the rules of the WT. The common statement being that anyone who prefers a religion other than JW does so because their preacher's just tell them what they want to hear (i.e. being gay is ok, sex before marriage is ok, don't have to preach, etc). But isn't that exactly what the apostles (or at least Peter) were doing? They stuck with jesus, not because of his love for them or others, not because of the miracles he performed or prophesies he fullfilled, not because they had faith that he was god's son, but because he had "Sayings of everlasting life." If backing a minister because he says you will live forever isn't "surrounding [yourself] with teachers to have [your] ears tickled" then I don't know what is.
I've also always found it odd how no one ever applies it to JWs. If you think about it 2 Timothy 4:3 could apply to litterally ANY religion, as they all have nice, beneficial, uplifting aspects to them otherwise they wouldn't exist. I guess that's just evidence that I never truly made the truth my own - I could objectively apply WT teachings to the WT itself.
Just more evidence that the bible can be used to make a case for just about anything you want it to say.