Instances of hierarchal authority in the days of the Apostles.
These verses show us there was a community of Christians and the Apostles were acknowledged as leaders of the community:
The community of believers was of one heart and mind, and no one claimed that any of his possessions was his own, but they had everything in common. With great power the apostles bore witness to the resurrection of the Lord Jesus, and great favor was accorded them all. There was no needy person among them, for those who owned property or houses would sell them, bring the proceeds of the sale, and put them at the feet of the apostles, and they were distributed to each according to need. Acts 4:32-35
In the next verses, we see the Apostles appointed deacons from among the disciples:
At that time, as the number of disciples continued to grow, the Hellenists complained against the Hebrews because their widows were being neglected in the daily distribution. So the Twelve called together the community of the disciples and said, "It is not right for us to neglect the word of God to serve at table. Brothers, select from among you seven reputable men, filled with the Spirit and wisdom, whom we shall appoint to this task, whereas we shall devote ourselves to prayer and to the ministry of the word. (Acts 6:1-4)
In this verse, we see that presbyters were already common in the Church:
This they did, sending it to the presbyters in care of Barnabas and Saul. (Acts 11:30)
In this next verse, we see the Christians had already considered themselves a church:
About that time King Herod laid hands upon some members of the church to harm them. (Acts 12:1)
Also, there were, within the Church, particular, local churches:
Now there were in the church at Antioch prophets and teachers: Barnabas, Symeon who was called Niger, Lucius of Cyrene, Manaen who was a close friend of Herod the tetrarch, and Saul. (Acts 13:1)
BTS