and if Christ hath not been raised, then is our preaching vain, your faith also is vain.

And if Christ did not come again from the dead, then our good news and your faith in it are of no effect.

και αν ο Χριστος δεν ανεστη, ματαιον αρα ειναι το κηρυγμα ημων, ματαια δε και η πιστις σας.

And if Christ be not risen, then is our preaching vain, and your faith is also vain.