Knowing the Bible is possible only through the Watchtower organization
"Praise Jehovah with His People"
Watchtower, 7/1/1973, p. 401-2
"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," (Watchtower, July 1, 1973, p. 402).
WHY APPRECIATE GOD'S ORGANIZATION
For one thing, Jesus' anointed followers, who are part of Jehovah's earthly organization, are "ambassadors substituting for Christ." Their companions with earthly hopes also serve the interests of the Kingdom. (2 Cor. 5:20) Mind you, they are not ambassadors and envoys of a mere human government and of sinful rulers. They represent Jehovah, his exalted spirit king Jesus Christ and the mighty kingdom of God. What an inestimable privilege! Of course, to serve and praise the Universal Sovereign, one must associate with the organization of Jehovah's Christian witnesses.
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." (1 Cor. 2:10) Jesus Christ praised his heavenly Father for 'hiding such things from the wise and intellectual ones but revealing them to babes.' (Matt. 11:25) How very much true Christians appreciate associating with the only organization on earth that understands the "deep things of God"!
Direction by God's spirit enables Jehovah's servants to have divine light in a world of spiritual darkness. (2 Cor. 4:4) For instance, long ago they understood that 1914 C.E. would mark the end of the Gentile Times or "appointed times of the nations," during which the Gentile nations were allowed uninterrupted rulership of the earth. (Luke 21:24) This 2,520-year period began with the destruction of Jerusalem and its temple by the Babylonians in the late seventh century B.C.E. For example, Zion's Watch Tower of March 1880 had declared: "'The Times of the Gentiles' extend to 1914, and the heavenly kingdom will not have full sway till then." Only God by his holy spirit could have revealed this to those early Bible students so far in advance.