1 Corinthians 15:14

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

Matthew 15:9

But in vain do they worship me, teaching for doctrines the commandments of men.

Acts 17:31

Because he hath appointed a day, in which he will judge the world righteously, by the man whom he hath ordained, whereof he hath given assurance to all men, in that he hath raised him from the dead.

1 Corinthians 15:2

By which also ye are saved, if ye retain what I preached to you, unless ye have believed in vain.

1 Corinthians 15:17

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

Galatians 2:2

I went up by revelation, and explained to them the gospel, which I preach among the Gentiles; but severally to those of eminence, lest by any means I should run, or should have run in vain.

1 Thessalonians 4:14

For if we believe, that Jesus died and rose again, so will God bring with him those also that sleep in Christ.

James 1:26

If any one be ever so religious, and bridleth not his tongue, but deceiveth his own heart, this man's religion is vain.

James 2:20

But art thou willing to know, O empty man, that faith without works is dead?

Treasury of Scripture Knowledge

Summary

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

Bible References

General references

1 Corinthians 15:2
By which also ye are saved, if ye retain what I preached to you, unless ye have believed in vain.
Matthew 15:9
But in vain do they worship me, teaching for doctrines the commandments of men.
Acts 17:31
Because he hath appointed a day, in which he will judge the world righteously, by the man whom he hath ordained, whereof he hath given assurance to all men, in that he hath raised him from the dead.
Galatians 2:2
I went up by revelation, and explained to them the gospel, which I preach among the Gentiles; but severally to those of eminence, lest by any means I should run, or should have run in vain.
James 1:26
If any one be ever so religious, and bridleth not his tongue, but deceiveth his own heart, this man's religion is vain.
James 2:20
But art thou willing to know, O empty man, that faith without works is dead?