1 Cor 6:11
The next passage in 1 Corinthians we should consider is not necessarily a baptism passage —
(1Co 6:11 ESV) 11 And such were some of you. But you were washed, you were sanctified, you were justified in the name of the Lord Jesus Christ and by the Spirit of our God.
“Wash” is used of baptism in —
(Act 22:16 ESV) And now why do you wait? Rise and be baptized and wash away your sins, calling on his name.’
The verb in 1 Cor 6:11 is aorist, referring to a point-in-time action. Paul is therefore, I believe, referring to baptism.
“Washed” is parallel with “sanctified” (made holy) and “justified” (declared holy) — and this is all “by the Spirit of our God.” As always, consideration of the Spirit isn’t far from consideration of baptism. We’ve seen this repeatedly in the Gospels and Acts, and we’ll find it many times in Paul.
The active agent in our washing is not the water but the Spirit. And, plainly, Paul teaches that something happened in baptism that washed us. Immediately preceding v. 11 is —
(1Co 6:9-10 ESV) 9 Or do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived: neither the sexually immoral, nor idolaters, nor adulterers, nor men who practice homosexuality, 10 nor thieves, nor the greedy, nor drunkards, nor revilers, nor swindlers will inherit the kingdom of God.
Our baptism washes us from our former sins — indeed, from our former sinfulness. Paul’s point isn’t so much that we are forgiven as we are changed. We no longer act that way! He wants us to understand that the soteriology — the means of our salvation — tells us how to live. Our lifestyle is driven by how we’ve been saved.
1 Cor 12:13
(1Co 12:13 ESV) 13 For in one Spirit we were all baptized into one body — Jews or Greeks, slaves or free — and all were made to drink of one Spirit.
Again, we see baptism tied to the work of the Spirit. Our baptism is “in one Spirit” so we will “drink of one Spirit.” Indeed, the only reference to water — “drink” — is a reference to what we receive from the Spirit.
Paul mentions the Spirit twice. The Spirit places in the body, and once in the body, we drink of the Spirit.
“Drink” makes us think of —
(Isa 44:3 ESV) 3 For I will pour water on the thirsty land, and streams on the dry ground; I will pour my Spirit upon your offspring, and my blessing on your descendants.
Of course, “drink” also brings to mind Jesus at the well with the Samaritan woman. Paul is speaking of living water.
The main point of the verse, however, is the “one body.” This is, of course, the body of Christ, and so fits well with the imagery of Rom 6 — we’ve been baptized “into” Christ and so we are part of his body. It’s a theme found throughout Paul’s writings. Having been added to the one body, we are united, indeed, part of the same person.
Paul’s argument proceeds from irony. The Corinthians are arguing that the diversity of their gifts are grounds for division. Paul asserts the opposite. The gifts are from the Spirit, and the Spirit’s work is to unite the body.
Baptism is, obviously, part of the thought, but water baptism is incidental. Here, the emphasis is on what the Spirit does in baptism.
Now, there are those who argue that the emphasis on the Spirit shows that “baptized” is a spiritual baptism separate from water baptism. But that’s truly a forced argument. Paul had earlier written,
(1 Cor 1:14-17 ESV) I thank God that I baptized none of you except Crispus and Gaius, 15 so that no one may say that you were baptized in [into] my name. 16 (I did baptize also the household of Stephanas. Beyond that, I do not know whether I baptized anyone else.) 17 For Christ did not send me to baptize but to preach the gospel, and not with words of eloquent wisdom, lest the cross of Christ be emptied of its power.
And this passage is an obvious reference to water baptism. And, of course, in 1 Cor 15:19, Paul again uses “baptize” to refer to water baptism. We can’t just assume that Paul used the word in a different sense just to suit our theology.
Conclusion
Hence, in 1 Corinthians, Paul repeatedly refers to baptism as effecting a change of status, from outside of Christ or the name of Christ or the body of Christ to inside. But it’s also true that Paul’s stress is on our relationship with Christ and the working of the Spirit. He doesn’t address any of the issues we are so obsessed with: the convert’s understanding of baptism, the amount of water used, or such like. Indeed, although he is certainly speaking of water baptism, his focus is on the meaning of baptism for the convert and how he is to live his life after his conversion.