This chapter began Paul’s discussion on the resurrection of the dead. This subject is inextricably linked to the resurrection of the Christ. Paul began his reproof of those who “say that there is no resurrection of the dead” in verse 12. Before doing so, however, he set the foundation of his argument that was the Corinthian’s belief in the core of the gospel message – the resurrection of Christ. For this reason, they should have believed in the resurrection of the dead.
Acts 18 records the events of Paul’s ministry in Corinth when he taught them the gospel. The church was established on the foundation of Christ (cf. 3:5-16). He preached the message of the Scriptures (Old Testament) to them, which included the death, burial, and resurrection of the Messiah. It is this doctrine which they believed, and held fast to, and in this way they were saved. In order to continue in the saved state in Christ, they would need to continue in this gospel which includes the doctrine of the resurrection.
These truths of Jesus’ death, burial, and resurrection that comprise the gospel message were preached by Paul and the other apostles. Paul’s ministry was one characterized by humility, and stood by the grace of God. His life was fully dedicated to the service of Christ’s message, and proved successful when men like those who made up the Corinthian church believed. Concerning the general resurrection, the Corinthians belief should not wane, for the evidence was insurmountable. Christ was raised, and they believed. For He was seen by many – by Peter and the rest of the apostles; by over five hundred disciples at once; by James, His fleshly brother; and by the very one writing the epistle, Paul. These eyewitnesses could testify to the fact. Therefore, they should have firm belief in the general resurrection because they believed in Christ’s resurrection, and He is “the firstfruits of those who have fallen asleep” (v. 20). Meaning they shall rise as well.