You of course mean the Catholic Church...That's a physical act that has nothing to do with Jesus' actual church...Joing the church is a spiritual procedure...
Send men to Joppa, and call for Simon, whose surname is Peter; Act 11:14 Who shall tell thee words, whereby thou and all thy house shall be saved.
People get saved and follow Jesus by hearing the words of the bible preached, NOT by joining a (your) church...
Act 11:20 And some of them were men of Cyprus and Cyrene, which, when they were come to Antioch, spake unto the Grecians, preaching the Lord Jesus.
Act 11:21 And the hand of the Lord was with them: and a great number believed, and turned unto the Lord.
More people believing and then following the Lord as the result of hearing the word preached by street preachers in Antioch...They didn't belong to any church...
Act 11:23 Who, when he came, and had seen the grace of God, was glad, and exhorted them all, that with purpose of heart they would cleave unto the Lord.
Act 11:24 For he was a good man, and full of the Holy Ghost and of faith: and much people was added unto the Lord.
Barnabas didn't go to a church to convince people to follow Jesus...They were added unto the Lord's church as they were saved/believed...
Tit 3:4 But after that the kindness and love of God our Saviour toward man appeared, Tit 3:5 Not by works of righteousness which we have done, (no works) but according to his mercy he saved us, by the washing of regeneration, (not washed by water but washed by a spiritual rebirth) and renewing of the Holy Ghost;
No church involved...When new believers were added to the body of Christ by choosing to follow Jesus they then joined a physical church of believers...
Selah ... Amen.