11 For whether it is I or they: so we preach, and so you have believed.
12 Now if Christ is preached, that he rose again from the dead, how is it that some among you say that there is no resurrection of the dead?
13 For if there is no resurrection of the dead, then Christ has not risen.
14 And if Christ has not risen, then our preaching is useless, and your faith is also useless.
15 Then, too, we would be found to be false witnesses of God, because we would have given testimony against God, saying that he had raised up Christ, when he had not raised him up, if, indeed, the dead do not rise again.
16 For if the dead do not rise again, then neither has Christ risen again.
17 But if Christ has not risen, then your faith is vain; for you would still be in your sins.