The fifteenth chapter of 1 Corinthians is Paul’s most lengthy and detailed defense of the principle of the resurrection. He stressed that the resurrection is at the very heart of the gospel of Christ: “For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures; and that he was buried, and that he rose again the third day according to the scriptures” (1 Corinthians 15:3-4). Preaching the gospel is pointless without the resurrection. “If there be no resurrection of the dead, then is Christ not risen: and if Christ be not risen, then is our preaching vain, and your faith is also vain” (1 Corinthians 15:13-14). In the midst of his arguments concerning the principles of resurrection, Paul asked the Corinthians: “Else what shall they do which are baptized for the dead, if the dead rise not at all? why are they then baptized for the dead?” (1 Corinthians 15:29).
Since this is the only verse in scripture that makes any reference to baptism for the dead, it has been subject to much speculation. Paul did not explicitly approve or condemn the practice. He just used it as an example of the inconsistency of some at Corinth who “baptized for the dead” while rejecting the resurrection. All through the chapter Paul used pronouns such as we, us, our and ye [you], but in this verse he spoke of “they” who are baptized for the dead. Apparently only some Corinthians, and no one else, practiced “baptism for the dead.”
The idea that baptism for the dead involves “proxy baptism,” or the baptism of one person on behalf of another person, such as a dead relative, contradicts many other scriptures. While Peter does say that “baptism doth also now save us” (1 Peter 3:21), the teaching of scripture is clear that is not “baptism alone” that saves us, but the baptism that comes as a result of faith and repentance. If one could procure salvation for the dead through baptism, he would also have to believe and repent for the dead. Paul reminded the Romans that “we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life” (Romans 6:4). Baptism for the dead certainly does not bring “newness of life” to the dead!
Explanations of “baptism for the dead” that are consistent with other scripture are few. It is possible that some of the Corinthian Christians obeyed the gospel because of death-bed appeals of friends and relatives, so that they were baptized for (in response to the appeals of) the dead. It is also possible that some at Corinth considered that in their baptism they replaced those who were now dead or martyred, thus to fill vacant places in the church left by those who no longer lived. If some at Corinth baptized on behalf of the dead in proxy baptism, they did something that is inconsistent with the rest of scripture. Since no New Testament writer commanded or implied that the practice should continue, there is no evidence that the church should “baptize for the dead” today.