Brandon Harper answers the question
How do Jehovah's Witnesses members know the Governing Body has not become the 'evil slave'?
Never once, in the entire history of Jehovah’s Witnesses or the International Bible Students Association, has there ever been any period during which they legitimately represented any deity’s interests on Earth. The Governing Body cannot possibly have become ‘the evil slave’ simply because that implies it ever worked in any capacity other than in the interests of evil.
From the very first issue of Zion’s Watch Tower, the publications from the Watch Tower Bible and Tract Society of Pennsylvania, Inc. and then from the Watchtower Bible and Tract Society of New York, Inc. have contained abundant evidence that the authors have not been willing to “wait on Jehovah” but have instead run ahead, haughtily offering as “the truth” and as “unmistakable testimony” from the Scriptures what were, in fact, 100% fallible and incorrect false hopes.
The publications criticize other religions for doing this same thing, citing Genesis 40:8 as the reason why these religions get their prophetic predictions so wrong. The Governing Body claims they are examining the signs and seeking to determine in what ways prophecies are going to be fulfilled: that is divination.
There is only evil from that organization and from its leadership. Anyone who remains associated to it will be supporting those who bind up heavy loads upon others (“wait on Jehovah”) that they themselves are haughtily and hypocritically unwilling to budge even with their little fingers.
The fruit of false prophets is predictions that do not come true. (Deuteronomy 18:20-22; Matthew 7:15-20) When Jehovah’s Witnesses actively ignore the mountainous history of their religion’s false predictions from false prophets, or pretend that such predictions are not example of prophecies from divination rather than interpretations received from Jehovah, they demonstrate plainly that they trust the Governing Body more than they trust the Bible. (Ezekiel 13)
They are an evil organization still actively bearing the poisonous fruit of false prophets into the world.