The Baptism of Christ (1623), by Guido Reni.

Part of a series on Baptism in Depth.

A few days ago, I had a startling realization about St. Paul.

I’ve always been frustrated by Paul’s lack of emphasis on Baptism. If Baptism is what saves us (1 Peter 3:21), why does Paul so seldom mention it in conjunction with salvation? Reformed Protestants are quick to point out that according to Paul, we are saved “by grace through faith … not because of works” (Ephesians 2:8–10) — and Baptism, according to them, is a “work”; and they stand on this to the exclusion of all other Scripture, even the words of Jesus Himself, demonstrating the necessity of Baptism (Mark 16:16, John 3:5). Many times I’ve had niggling doubts: What if the Protestants are right about Paul — about “salvation by faith alone” (sola fide)? What if the critics are right about Paul, that he teaches a different message than Jesus?

But then the other day, it hit me like a Roman chariot:

Paul takes for granted that all of his readers have already been baptized.

St. Paul (1620), by Georges de la Tour.

Of course! Just as Jesus exhorted us to believe and be baptized, believing and being baptized formed two inseparable halves of the same thought and action for the earliest Christians. In the Acts of the Apostles, Baptism immediately followed a believer coming to faith in Christ in every single case of conversion, as I showed yesterday. Believing and being baptized were so inextricably connected in the apostolic mind that one even came to imply the other. The idea that a believer could come to believe in Christ and not be baptized was unthinkable.

Each of Paul’s letters presume a Christian audience. They are not evangelistic in nature, but written rather to existing Christian communities to counsel, instruct, and correct. Therefore Paul assumes that all of his recipients are baptized Christians:

But now that faith has come, we are no longer under a custodian; for in Christ Jesus you are all sons of God, through faith. For as many of you as were baptized into Christ have put on Christ. (Galatians 3:25–27)

Do you not know that all of us who have been baptized into Christ Jesus were baptized into his death? We were buried therefore with him by baptism into death, so that as Christ was raised from the dead by the glory of the Father, we too might walk in newness of life. (Romans 6:3–4)

The Baptism of the Eunuch (1626), by Rembrandt.

For St. Paul, just as for St. Luke in the Book of Acts, believing and being baptized were inextricably connected. Just as being baptized implied that one had come to believe, believing entailed that one had been baptized.

And so it is only with this crucial context that Paul’s declarations regarding salvation by faith can be properly understood:

We ourselves … who know a man is not justified by works of the law but through faith in Jesus Christ, even we have believed in Christ Jesus, in order to be justified by faith in Christ, and not by works of the law, because by works of the law shall no one be justified. (Galatians 2:15–16)

For we hold that a man is justified by faith apart from works of law. … God is one; and he will justify the circumcised on the ground of their faith and the uncircumcised through their faith. (Romans 3:28–30)

The essential response to having faith in Christ is being baptized. Paul understood that his recipients had already come to faith in Christ and been baptized. The two are inextricably connected — and so a crucial component of being justified by faith, the operative component, is Baptism.