1 Corinthians 15:29

Else, what will they do, who are being immersed in behalf of the dead? If, not at all, are the dead to be raised, why are they even being immersed in their behalf?

Matthew 20:22

But Jesus, answering, said - Ye know not what ye are asking: Are ye able to drink the cup, which, I, am about to drink; They say unto him - We are able.

Romans 6:3-4

Or know ye not that, we, as many as were immersed into Christ Jesus, into his death were immersed?

1 Corinthians 15:16

For, if the dead are not raised, not even Christ, hath been raised;

1 Corinthians 15:32

If, after the manner of men, I have fought with wild-beasts at Ephesus, what, to me, the profit? If the dead are not raised, Let us eat and drink, for, tomorrow, we 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 the dead are not raised, not even Christ, hath been raised;
Romans 6:3
Or know ye not that, we, as many as were immersed into Christ Jesus, into his death were immersed?
Matthew 20:22
But Jesus, answering, said - Ye know not what ye are asking: Are ye able to drink the cup, which, I, am about to drink; They say unto him - We are able.