There are 6 ideas that go to make up the understanding that was central to those believers in Acts 2, and which was the undercurrent of all that they did and said: Jesus is Lord. Jesus is seen to be the head of the church, the apostle who plants the church, the leader who builds the church, the chief shepherd who rules the church, the one who is with the church, and finally the judge of the church.
As you remember from Acts 2, one the distinctives of those who were regenerated by the Holy Spirit and called “the church” was that they were a people who were obedient to scripture. In order to be obedient to something, we have to know its authority. The bible’s authority comes from it being the inspired word of God. As Christians we believe in Sola Scriptura, the idea that scripture alone is the supreme authority not only on matters of God but also regarding his people.
