In 1st Corinthians 15:29 the Apostle Paul asked, "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?" This passage of scripture has been misconstrued by the Church of Jesus Christ, Latter Day Saints and made into a doctrine that in essence states that if one wasn't baptized in his or her lifetime, then a living person can stand in for the deceased individual and be, "baptized for the dead." That seems far-fetched in the extreme to me.
1st Corinthians 15:1-2 of starts out with Paul's declaration of, "the gospel which I preached unto you, which also ye have received, and wherein ye stand; By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain." He then declares in verses 3-4 the Bible definition of the gospel, e.g., the death, burial, and resurrection of the Lord Jesus. Then in verses 5-8 he mentions those who had witnessed the resurrected Christ, which at the time of his writing, "above five hundred brethren at once; of whom the greater part remain unto this present, but some are fallen asleep," and finally his own testimony of seeing the resurrected Christ. Then in 1st Corinthians 15:9-11 Paul proclaims his own apostleship and that God's grace wasn't bestowed on him in vain because he, "laboured more abundantly than they all: yet not I, but the grace of God which was with me. Therefore whether it were I or they, so we preach, and so ye believed." Then starting in verse 12, he got into the meat of the matter.
In 1st Corinthians 15:12-15 the apostle uses pure logic, e.g., if there is no resurrection from the dead then the message which the apostles and others preached is a false witness because they preached that Jesus Christ rose from the dead. In verses 16-18 he reiterates that if there is no resurrection form the dead, then Jesus did not rise from the dead and those who put their faith and trust in the Lord Jesus are as lost as they were before they believed. What's more those who have left this life, having put their faith in His salvation have perished. Finally in verse 19 Paul said, "If in this life only we have hope in Christ, we are of all men most miserable." We have given up the pleasures of this world for nothing. We might as well be like the rich man in Jesus' parable found in Luke 12:16-21, "...I will say to my soul, Soul, thou hast much goods laid up for many years; take thine ease, eat, drink, and be merry."