“And if Christ be not risen, then is our preaching vain, and your faith is also vain.”
King James Version (KJV)
15:14 Then is our preaching - From a commission supposed to be given after the resurrection. Vain - Without any real foundation.
1Co 15:14 If Christ be not risen, then [is] our preaching vain. For in that case we have preached what is false, and you have believed it, so that "your faith is vain".