Otherwise, what do people mean by being baptized on behalf of the dead? If the dead are not raised at all, why are people baptized on their behalf?
1 Corinthians 15:29
There are a lot of questions asked about this verse within the Lord’s church, primarily because there are many different interpretations of it. The Mormon religion’s view is perhaps the most well-known, in which they teach that a living person can be baptized on behalf of a relative or friend who had already passed on from this life, thus fulfilling via proxy Christ’s requirement of baptism for salvation (Mk. 16:16; 1 Pet. 3:21). This view is false primarily because the Scriptures teach that one’s obedience or disobedience of God’s revealed will in the Bible cannot be transferred to others (Ezek. 18:20; Matt. 25:8-9). Scripture teaches that “it is appointed for man to die once, and after that comes judgment” (Heb. 9:27). Accordingly, after death it is impossible for anyone to leave the punishment of torment for the peace of Paradise (Lk. 16:26), even if their loved ones pray for their souls (as is taught in the Catholic religion) or are baptized on their behalf. Each of us will be judged by what we ourselves have done while we are alive, not by what others tried to do on our behalf after we die (2 Cor. 5:10). This is why it is paramount that we ourselves prepare for eternity while we still live this life by repenting of our sins, being baptized for the forgiveness of our sins, and striving to penitently obey the Lord’s revealed will in Scripture in all areas of our lives (Acts 2:38; Heb. 5:9; Matt. 7:21-27).
So what does “being baptized on behalf of the dead” mean?
Remember that some within the church at Corinth did not believe that the dead would be resurrected (15:12), and the entirety of what the apostle writes to them in this chapter is meant to refute that false teaching. He had earlier pointed out to them that if they were correct and “there is no resurrection of the dead, then not even Christ has been raised,” which meant that the entire Christian religion would be false and they would not in fact be saved from their sins when they had believed the gospel and had been baptized (15:13-19; cf. Mk. 16:15-16). So if the dead are not in fact raised, that means when they died there would in fact be no resurrection to then spend eternity in glory with God and Christ. They would simply remain dead for all time.
It’s also worth noting that hyper, the Greek term translated in verse 29 as “on behalf of,” could also be translated as “instead of” (Liddell-Scott-Jones), meaning “to replace.” Wayne Jackson speaks of an ancient Greek text which uses the preposition hyper to describe the enlistment of new soldiers who are intended “to replace” those killed in war. As Christians pass on from this life, who replaces them in the church? Those who are converted, those who are newly baptized into Christ (Gal. 3:26-27). Therefore, a better translation of verse 29 could be, “Otherwise, what do people mean by being baptized to replace the dead? If the dead are not raised at all, why are people baptized to replace them?”
That being the case, Paul’s point would basically be, “If there is no resurrection of the dead at the end of time, then why are we baptizing new converts in order to replace Christians who believed a lie and thus are now simply dead for all eternity?” This is, in my view, the likely meaning of verse 29.
— Jon