The weak point in this line of defense is the use of the word "inspired."
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"They do not claim that this slave class is infallible, but they do view it as the one channel that the Lord is using during the last days of this system of things."Proclaimers p.626
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The above paragraph is making a fatal admission but turning the admission inside out. Read it again and see if it is saying this instead:
"This slave class is fallible. The Lord is using a fallible channel."
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Consider the following BOLD claims:
Watchtower2010 Apr 15 p.10 Holy Spirits Role in the Outworking of Jehovahs Purpose
"Consider, too, the fact that Jehovah's organization alone, in all the earth, is directed by God's holy spirit or active force. (Zech. 4:6) Only this organization functions for Jehovah's purpose and to his praise. To it alone God's Sacred Word, the Bible, is not a sealed book. Many persons of the world are very intelligent, capable of understanding complex matters. They can read the Holy Scriptures, but they cannot understand their deep meaning. Yet God's people can comprehend such spiritual things. Why? Not because of special intelligence on their part, but as the apostle Paul declared: "For it is to us God has revealed them through his spirit, for the spirit searches into all things, even the deep things of God."" Watchtower1973 Jul 1 p.402
"The Watchtower is not the instrument of any man or set of men, nor is it published according to the whims of men. No man's opinion is expressed in The Watchtower. God feeds his own people, and surely God uses those who love and serve him according to his own will. Those who oppose The Watchtower are not capable of discerning the truth that God is giving to the children of his organization, and this is the very strongest proof that such opposers are not of God's organization."Watchtower 1931 Nov 1 p.327
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The claims for the Watchtower and it's creative writing department are strange.
They are fallible but the only holy spirit directed organization on Earth!
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What is blasphemy?
It is assigning attributes which belong ONLY to God to some other entity instead.
Such as this:
"It is vital that we appreciate this fact and respond to the directions of the "slave" as we would to the voice of God, because it is His provision."Watchtower 1957 Jun 15 p.370