The church gathers together for the purpose of edification. This is done to the glory of God.
What tangible result should come from this edification? The answer is infiltration. As we grow closer to Christ through mutual upbuilding, we are more prepared to infiltrate the world as incarnational Christians. What does this look like? Simply put, we look like Jesus (despite our faults) to the lost.
Specifically, edification ought to bring about a deeper desire for holy living, a deeper desire for serving the needy, and a deeper desire to proclaim the gospel of Christ.
We are Christian infiltrators into Satan's realm. We must be prepared for battle. The gathering is the preparation place.