Jesus' goal on Earth was to establish a people...a church of people called out for the Kingdom. That kingdom is already here, in the sense that we are the kingdom, and it is yet to come in the sense that it will be brought to completion on a day yet to come. We are of this heavenly kingdom, since we were born again into the kingdom. Jesus told peter, Matthew 16:18-19 And I say also unto thee, That thou art Peter, and upon this rock I will build my church; and the gates of hell shall not prevail against it. And I will give unto thee the keys of the kingdom of heaven: and whatsoever thou shalt bind on earth shall be bound in heaven: and whatsoever thou shalt loose on earth shall be loosed in heaven. So you can see the here and now, and the later to come of the thing. And, you can see that Jesus is establishing a church in heaven, to which Peter is to enlist from Earth's peoples. Very early on, even in the time of the 12 disciples, people began to split up and form different ideas about Christianity. There is even recorded instances of arguments between churches and ministries and ministers throughout the New Testament. Some issues were only resolved by spliting ways, as with Paul and Barnabas. But, we never read of one saying the other could not go to heaven. I can not picture Peter sticking his tongue out at Paul and shaking the keys in his face, insisting that the gospel is only for the Jews, though Paul did stand in Peter's face and call him a bigot or a hypocrit. Galatians 2:11-12 But when Peter was come to Antioch, I withstood him to the face, because he was to be blamed. For before that certain came from James, he did eat with the Gentiles: but when they were come, he withdrew and separated himself, fearing them which were of the circumcision.
How sad the disciples were to see Jesus go when He ascended up into heaven. But, they soon learned that they were to be filled with the Holy Ghost...God's Spirit inside of them here on Earth. And, either way, we have "God with us." Not only does Emmanuel mean God with Us, but the compound name "Jehovah Shammah" used in the Old Testament in Exodus 48:35 means "the Lord is here." It may seem easy for us to see only one church when Jesus walked Earth. But, if you think about it, that's why the Jews had the Romans kill Jesus...the different denominational sects did not want Him to be the one church head. So, denominationalism goes all the way back into the Old Testament. But, that Heavenly kingdom is the "gold standard" all the denominations are built on here on earth. Just as denominations of money only refer to the gold behind them, church organizations are only representative of the Kingdom of Heaven.
The name Cephas, or Peter meant little rock, or pebble. As Jesus is building his church, he allows us to be a part of the bigger Rock. But, we are still just a piece of the rock...just a tiny pebble you see. It is rare for man to be able to look beyond the keys in his hands to see the majesty of the kingdom of heaven that he is entering with those keys. He sees power in the keys, but fails to recognize what lies beyond, and whose power He holds in his hands. We do not see the glory of God with us in our hands because of the denominational "dollar bills" in our churches. The buck stops here...on Earth...and so do the denominations. Jesus has the gold standard and the one true church of the Kingdom of Heaven. Let me invest myself into that Kingdom and see people won into that Kingdom.