And if Christ has not been raised, our preaching is useless and so is your faith. More than that, we are then found to be false witnesses about God, for we have testified about God that he raised Christ from the dead. But he did not raise him if in fact the dead are not raised. For if the dead are not raised, then Christ has not been raised either. And if Christ has not been raised, your faith is futile; you are still in your sins. Then those also who have fallen asleep in Christ are lost. If only for this life we have hope in Christ, we are of all people most to be pitied. 1 Corinthians 15:14-19
Paul considers the question,
What if …? What would the world be like if Jesus had not been raised? There are six history-changing facts that would have followed if Jesus had not risen. First, without the resurrection all preaching would have been a waste of time. All the messages you have ever heard or read, all the Christian books you have read, all radio and television broadcasts of the gospel you have listened to would have been a total waste of time had Jesus not risen from the dead.