'Dead Rise' in the Bible

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

Besides, what shall they do who are baptized for the dead, if the dead rise not at all? why then are they baptized for the dead?

If, to speak as a man, I fought with beasts at Ephesus, what advantage have I, if the dead rise not? Let us eat and drink, for to-morrow we die. ---