Christ's promise that He will build His church is either a promise or a threat, depending on whether you are "on the train" or "on the tracks."
What is the main thing for the church? To glorify God. How do we glorify God? Preaching the Gospel and bringing disciples into the body of Christ--the local church.
This is about what is needed to set up a church with an emphasis on our foundation(Christ)
This about examples Paul shows when reaching out to other cities,