1 Corinthians 15:29

Otherwise what will become of those who got themselves baptized for the dead? If the dead do not rise at all, why are these baptized for them?

Matthew 20:22

"None of you know what you are asking for," said Jesus; "can you drink out of the cup from which I am about to drink?" "We can," they replied.

Romans 6:3-4

And do you not know that all of us who have been baptized into Christ Jesus were baptized into His death?

1 Corinthians 15:16

For if none of the dead are raised to life, then Christ has not risen;

1 Corinthians 15:32

If from merely human motives I have fought with wild beasts in Ephesus, what profit is it to me? If the dead do not rise, let us eat and drink, for tomorrow we are to die.

Treasury of Scripture Knowledge

Summary

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?

Bible References

What

1 Corinthians 15:16
For if none of the dead are raised to life, then Christ has not risen;
Romans 6:3
And do you not know that all of us who have been baptized into Christ Jesus were baptized into His death?
Matthew 20:22
"None of you know what you are asking for," said Jesus; "can you drink out of the cup from which I am about to drink?" "We can," they replied.