The First Church 

The first church was established in the New Testament and was founded on the Day of Pentecost. This is plainly recorded
in the Book of Acts. All of the original Christian churches, such as Ephesus, Corinth, etc.,
were established on the same Pentecostal experience.
Acts 2:1
And when the day of Pentecost was fully come, they were all with one accord in one place.
Acts 2:38-39
Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost. For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call.
Acts 11:26
And when he had found him, he brought him unto Antioch. And it came to pass, that a whole year they assembled themselves with the church, and taught much people. And the disciples were called Christians first in Antioch.
Acts 19:1-5
And it came to pass, that, while Apollos was at Corinth, Paul having passed through the upper coasts came to Ephesus: and finding certain disciples, he said unto them, “Have ye received the Holy Ghost since ye believed?” And they said unto him, “We have not so much as heard whether there be any Holy Ghost.”  And he said unto them, “Unto what then were ye baptized?” And they said, “Unto John’s baptism.” Then said Paul, “John verily baptized with the baptism of repentance, saying unto the people, that they should believe on him which should come after him, that is, on Christ Jesus.”  When they heard this, they were baptized in the name of the Lord Jesus.
We adhere to the same message – the apostles doctrine; therefore we are called “Apostolic.
We adhere to the same plan of salvation that was delivered on the Day of Pentecost;
therefore we are called “Pentecostal”.
Luke 24:46-49
Thus it is written, and thus it behoved Christ to suffer, and to rise from the dead the third day: and that repentance and remission of sins should be preached in his name among all nations, beginning at Jerusalem. And ye are witnesses of these things. And, behold, I send the promise of my Father upon you: but tarry ye in the city of Jerusalem, until ye be endued with power from on high.
Acts 1:8
But ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judea, and in Samaria, and unto the uttermost part of the earth.
Acts 4:12
Neither is there salvation in any other: for there is none other name under heaven given among men, whereby we must be saved.
Galatians 1:9
As we said before, so say I now again, If any man preach any other gospel unto you than that ye have received, let him be accursed.
I Timothy 1:3
As I besought thee to abide still at Ephesus, when I went into Macedonia, that thou mightiest charge some that they teach no other doctrine.