1 Corinthians 15:17 Meaning

15Yea, 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.

16For if the dead rise not, then is not Christ raised:

17And if Christ be not raised, your faith is vain; ye are yet in your sins.

18Then they also which are fallen asleep in Christ are perished.

19If in this life only we have hope in Christ, we are of all men most miserable.