The term "Governing Body" never appears in the scriptures so once again we see the Watchtower placing great emphasis on a term that does not exist in the bible. How then does the Watchtower justify an all powerful Governing Body? This is by reference to when the issue of circumcision was decided in Jerusalem, as discussed in Acts chapter 15.
There is only occasion that a gathering of brothers is ever mentioned to decide an issue; the scriptures never again mention a select group of brothers convening to establish doctrine. On this occasion it can not be said that the decision was made by an established Governing Body. Rather in Acts it says that "they arranged for Paul and Barnabas and some others of them to go up to the apostles and older men in Jerusalem regarding this dispute." (Acts 15:2) Rather than showing the existence of a Governing Body of a small number of leaders, Acts describes a gathering of all the apostles and older men in Jerusalem along with Paul and Barnabas, who were traveling missionaries, to decide on a important issue that was affecting the local congregations.
To show that there was no centralized Governing Body directing the early Christians it is interesting to read the history of the Apostle Paul. After Paul’s conversion he did not go to Jerusalem to receive an assignment. Rather, he immediately embarked on his missionary work without conferring with the apostles or any group of leaders. Three years after his conversion Paul made his first trip to Jerusalem and even then did not meet with a group of leaders, but just with Peter and James. It was not till a further fourteen years later that he went back to Jerusalem (Gal 2:1-3), possibly for the occasion described in Acts 15.
The early Christians were not directed by an organisation, but by the words of Jesus and the guidance of the Holy Spirit. It was under the guidance of Holy Spirit that Paul did his work, as were all followers of Jesus.
(Romans 15:19) "19 with the power of signs and portents, with the power of holy spirit; so that from Jerusalem and in a circuit as far as Illyricum I have thoroughly preached the good news about the Christ."
(Acts 4:31) "… they were one and all filled with the holy spirit and were speaking the word of God with boldness."