Much current thought supports the idea that denominations should unite to form one denomination. But the Scriptures support the idea of independence of different branches of the church, as there was such independence in the days of the apostles.
In the days of the early church, although there was one church for both Jew and Gentile, there was no one head of the church on earth. The Gentile churches taught by Paul, seemed to operate relatively independently of the Jewish churches taught by Peter and the others. Paul asserts this independence in Galatians 2:7-9: when they saw that the gospel of the uncircumcision was committed unto me, as the gospel of the circumcision was unto Peter (for he that wrought effectually in Peter to the apostleship of the circumcision, the same was mighty in me toward the Gentiles:) and when James, Cephas, and John, who seemed to be pillars, perceived the grace that was given unto me, they gave to me and Barnabas the right hands of fellowship; that we should go unto the heathen, and they unto the circumcision. So here we see two branches of the church even in its early days.
The reason Barnabas and Paul went to Jerusalem to find out about the question of the ceremonial law of Moses, was not because they did not know the answer, nor was it that they needed authority from the Jerusalem apostles. Rather it was to undermine the false Jerusalem authority claimed by some who taught the false doctrine reported in Acts 15:1,2: And certain men which came down from Judea taught the brethren, and said, Except ye be circumcised after the manner of Moses, ye cannot be saved. When therefore Paul and Barnabas had no small dissension and disputation with them, they determined that Paul and Barnabas, and certain others of them, should go up to Jerusalem unto the apostles and elders about the question.
The conference at Jerusalem affirmed Paul's doctrine. The effect of this was not to bring Paul's churches under Jerusalem authority but rather to affirm Paul's authority over the Gentile churches which he had established. Paul did not need to learn from the Jerusalem church and said: they who seemed to be somewhat in conference added nothing to me. (Galatians 2:6)
Although there is nothing wrong with different denominations operating relatively independently, just as did Peter and Paul, we should also remember that it is God's will that: there should be no schism (division) in the body. (1 Corinthians 12:25) Therefore prayer and fellowship and cooperation between different denominations is to be encouraged. Also, in the resolution of doctrinal matters the Anglicans, for example, should not exclude listening to the counsel of the Baptists. But I do not mean that there should be a super council with authority to resolve all doctrinal matters for all denominations. We must remember that Jesus Christ in heaven is the one true head of the church, to whom we look to resolve doctrinal matters, although no one has a perfect understanding of His mind.
The ceremonies of baptism and of laying on of hands should associate a person with the whole church and not just a denominational branch of the church. If you want to be baptised as an adult (which you should) and the local pastor won't baptise you, there is nothing to stop you finding someone who will (even if he is another denomination), and then coming back to the local church. There is no need for you to leave it. You should consider yourself God's disciple not the pastor's disciple. The local pastor is only there to help you to be God's disciple. Remember the word that God spoke to Abraham: I am the Almighty God; walk before me, and be thou perfect. (Genesis 17:1) We should remember to walk before God, seeking first His approval, rather than man's.
The word ‘church’ sometimes refers to the whole church throughout the world and possibly even in heaven. For example, Matthew 16:18 where Jesus says: I will build my church. The word ‘church’ is also used to refer to a local assembly of Christians. For example, Acts 16:5: so were the churches established in the faith. Although in the bible the word ‘church’ never refers to a denomination, perhaps the fact that this word is used to refer to both local and universal gatherings, means that the word can be used in this way.
However, it is important to remove any implication that the entire church belongs only to a particular denomination such as the Anglicans. It belongs to God. There should be no implication that those outside the Anglican Church are not in the church. For these reasons it might be better to call the ‘Anglican Church’ the ‘Anglican Branch of the Church of God’.
Obviously, as there is only one truth, it would be better if all denominations had the same doctrine, if that doctrine were correct. But I do not think it would be better if all the denominations merged. To do so could mean that the leader had too much power. Also one hierarchy overseeing a billion believers would be extremely unwieldy.
Those who teach my revelation, could call themselves, the 'Church of Eternal Incarnation'.