Jehovah does not need an organization, nor has he used an organization for most of human history. For 2,500 years, from creation until the Israelites, there is no mention of any organization. God dealt directly with individuals. From the death of the Apostles until the formation of the Watchtower Society in the 1800's, what group represented God's organisation?
Bible history proves that this is not the case. For the majority of history God has not used any organization. He predominantly has operated through individuals, and has regularly dealt with more than one group at a time.
Originally God dealt directly with Adam and Eve. He continued to deal directly with Abel, and also directly with the unrighteous man Cain. (Gen 4:15) For the next 2000 years there is no mention of any organization or intervention by God, except for when God deal with two individuals; Enoch and Noah.
After the flood, Jehovah continued to deal with individuals rather than with an organization. He concurrently dealt separately with individuals such as Lot and Abraham.
*** jv chap. 15 p. 205 Development of the Organization Structure ***
However, Brother Russell emphasized that they were not attempting to set up an “earthly organization.”