Jesus gave the church its marching orders in practical terms. You’re familiar with His words:

Go therefore and make disciples of all the nations, baptizing them in the name of the Father and the Son and the Holy Spirit, teaching them to observe all that I commanded you; and lo, I am with you always, even to the end of the age. (Matthew 28:19–20)

Here, in Jesus’s Great Commission to His followers, we find no greater challenge . . . and no more comforting promise. This is what Jesus meant when He told them, “As the Father has sent Me, I also send you” (John 20:21).

But you probably have never considered the Great Commission as part of what makes a church contagious.

A church as God intends it is not a gathering of people who sit back and listen to one person preach. Instead, one life touches the life of another, who then touches the lives of people in his or her sphere of influence—those whom the originator would never have known.

To make it even more exciting, those recipients, in turn, touch the lives of others also. That is a contagious ministry.

The medical profession models the idea of multiplication very well.