Well, the typical Baptist Church little resembles the New Testament Church. That is to say, that the Jews who made up the Church in Jerusalem would feel totally out of place in such a congrehation, because they belonged to a radically different culture. Fact is that the New Testament is little concerned about describing their congregational life. Recall that the Apostles continued to worship at the temple. Probably their relationship with other Jews was a bit like that of John Wesley and the Church of England. After all, they converted many priests. Superficially they would be just another Jewish sect, except more truculent.
That's because they were all Jew...No Gentiles allowed...You wouldn't have been allowed in that church either...
Gentiles were not allowed into the Jewish temples...
When God revealed the Gospel of the Grace of God to Paul and took on the Gentiles as adopted Sons, they were not allowed into the Jewish Synagogues...They (the church) met and worshiped in each other houses and no doubt in fields, garagesm warehouses and storefronts...
The fact is, Baptist and many non Catholic churches are modeled after the very scripture that is read in those churches...