The Holy Spirit Promised
4 And being assembled together with them, He commanded them not to depart from Jerusalem, but to wait for the Promise of the Father, "which," He said, "you have heard from Me;
The 1st Pentecost began on that Sunday, 50 days after the Resurrection of Saturday (7 weeks and 1 day). It can be read in Acts 2.
The New Testament church came into existence on the first Day of Pentecost following Jesus' ascension. The account is found in Acts 2.
As far as I know the church was started by Paul in the new testament. And not in the old testament. At that time in the old testament they had the temple only. And Jesus also never did built a church in his life time.
The church in Ephesus was started possibly by Priscilla and Aquila.
The old testament, then the church and the new testament.
The early Church created the New Testament.
Jesus mentions 'the church' 18 times in the New Testament.
The Old Testament was a series of Laws. The New Testament is Love and Faith.
What new testament book tells us of the work of the early church
The word "church" appears 113 times in the King James version of the New Testament.
27 books are identified as being in the New Testament.
It started with the birth of jesus christ and his ministry.
New Testament fulfills what was written about Him in the Old Testament.