I found this question on line:
Is it true that the governing body of Jehovah's Witnesses is the only way of salvation?
The answer given was:
If you don’t trust the Faithful Slave, you do not trust Jehovah. How can anyone be saved if they don’t trust Jehovah? Jehovah fully trusts the Faithful Slave, so shouldn’t you trust the Slave as well and receive the words of the Faithful Slave as the word of God.
All the evidence in the Bible points to the selection of the Slave in 1919 when Joseph Rutherford and the directors of the Watchtower Bible and Tract Society of Pennsylvania were serving in Brooklyn New York. These were fine anointed men, with humble hearts teaching wonderful truths out of the Bible. Yes, they made asses of themselves when they taught in the Millions Campaign that 1925 would mark the return of Abraham, Isaac and Jacob and that in 1926 you could call Abraham in Jerusalem and ask for Granny to be raised. But, they, unlike Christendom admitted their mistake and revised their understanding.
Similarly in 1968 when they taught young people that they would never grow old in this system and were encouraged to stay alive till 75 and now they are AARP card carrying senior citizens. But that mistake was because many Jehovah’s Witnesses blew these cautious predictions in their minds until they burst asunder. Then they were humbled and learned not to serve God for a date. That is when the true worshippers began making those neglected repairs on their homes and made dentist appointments again. But the point is, the Faithful Slave is not infallible like the Pope of Rome. Yet if you do not heed their message and refuse to trust them, you will be destroyed at Armageddon or sooner, during the Great Tribulation. Only those who trust in these princes have a scriptural hope of surviving the conclusion of this system of things…as the scriptures say.
Unfortunately, Jesus can’t save you without them. So hurry and come to Jehovah’s organization for salvation.