Introduction
Every pastor faces this question: What are we actually here for? The world offers many templates for what a 'successful' church looks like — growing attendance, impressive programmes, cultural relevance, social impact. But the New Testament has a much clearer and simpler answer. Acts 2:41-47 gives us a snapshot of the earliest church — freshly filled with the Spirit, freshly empowered by Pentecost — and shows us what it looked like when the church was simply doing what God designed it to do.
Every tool has a design purpose. A hammer used as a screwdriver will frustrate its user and damage the job. A church that pursues purposes other than those God designed it for will similarly frustrate its people and fail in its mission. The church is not a community centre, a therapy group, or a political movement — though it may bless community, promote healing, and shape values. It is the body of Christ, the pillar and ground of the truth (1 Timothy 3:15), and its design purposes are found in the New Testament.
Sermon Outline
I. The Church is Built on the Word — "they continued stedfastly in the apostles' doctrine"
This is the non-negotiable foundation of every healthy church. A church that is not built on biblical preaching and teaching is not a church in the New Testament sense — it is a social club that uses Christian vocabulary. The Word of God is not one component of a church's life — it is the structural beam on which everything else hangs.
Preach the word; be instant in season, out of season; reprove, rebuke, exhort with all longsuffering and doctrine.
2 Timothy 4:2
II. The Church is Bound in Fellowship — "and fellowship"
This fellowship expressed itself practically in the early church: they shared their possessions (verses 44-45), they met in each other's homes (verse 46), they ate together. The church is not a gathering of isolated individuals who sit in rows — it is a community with genuine bonds of mutual love, care, and accountability.
A new pastor builds fellowship by modeling it — by being genuinely known, by knowing his people, and by creating the conditions for authentic Christian community to develop.
But if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.
1 John 1:7
III. The Church is Centred on Worship — "and in breaking of bread, and in prayers"
Prayer, too, was corporate and regular. The early church prayed together, and the power of God accompanied that prayer (see Acts 4:24-31). A church that does not pray together is trusting in its own resources. A church that prays together is drawing on the infinite resources of God.
Worship — in all its forms — is not the warm-up before the sermon. It is the central activity of the gathered church: ascribing to God the worth He deserves.
For as often as ye eat this bread, and drink this cup, ye do shew the Lord's death till he come.
1 Corinthians 11:26
IV. The Church is Blessed with Growth — "And the Lord added to the church daily such as should be saved"
This does not mean the church is passive about evangelism — the apostles preached constantly (Acts 2:14, 4:2, 5:42). But the church did not engineer its own growth. It created the conditions — faithfulness to the Word, genuine community, consistent prayer — and God gave the increase.
A pastor cannot grow his church. He can be faithful. He can teach, serve, pray, and love. And the Lord who builds His church (Matthew 16:18) will add to it according to His sovereign will.
And I say also unto thee, That thou art Peter, and upon this rock I will build my church; and the gates of hell shall not prevail against it.
Matthew 16:18
Conclusion
The church that is devoted to the apostles' doctrine, bound in genuine fellowship, consistent in worship and prayer, and actively sharing the gospel will be the church that the Lord blesses with growth. Not because it has followed a formula, but because it has done what God designed it to do. That is a church worth building — and it is worth giving your life for.