The lesson traces the origin of the New Testament church to the eternal plan of God, showing that the church was neither a human invention nor a later development, but a divine institution purposed by God, promised by the prophets, established by Jesus Christ, and revealed through the apostles. It emphasizes that Christ built only one church, founded upon the truth of His identity as the Son of God, and that this church came into existence on the Day of Pentecost when the gospel was first preached and believers were added by the Lord.
The lesson further challenges believers to look beyond the confusion of modern religious divisions and return to the simple pattern of the New Testament church. It highlights God's desire for unity under the lordship of Christ and encourages sincere seekers of truth to examine the Scriptures carefully in order to understand the nature, organization, and mission of the church as Christ originally established it, and to become part of the one body that belongs to Him
