The document discusses the core elements of the gospel that were preached by the early church and Paul. These elements included: the cross and crucifixion of Christ, his resurrection, that his death and resurrection were part of God's plan, and that there were eyewitnesses to these events. When the gospel containing these elements was preached, it resulted in thousands coming to faith in Christ and the growth and spread of the early church. The document encourages believers to share the gospel boldly as commanded by Jesus.