'Dead Rise' in the Bible

Yea, and we are found false witnesses of God; because we have testified of God that he raised up Christ: whom he raised not up, if so be that the dead rise not.

For if the dead rise not, then is not Christ raised:

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?

If after the manner of men I have fought with beasts at Ephesus, what advantageth it me, if the dead rise not? let us eat and drink; for to morrow we die.