Moreover, brethren, I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand; By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain. For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures; And that He was buried, and that He rose again the third day according to the scriptures: and that He was seen of Cephas, then of the twelve…
Now if Christ be preached that He rose from the dead, how say some among you that there is no resurrection of the dead? But if there be no resurrection of the dead, then is Christ not risen: and if Christ be not risen, then is our preaching vain, and your faith is also vain.
For if the dead rise not, then is not Christ raised: And if Christ be not raised, your faith is vain; ye are yet in your sins. -1 Corinthians Chapter 15
Apostle Paul in 1 Corinthians Chapter 15 tells his brethren to continue to stand in the gospel that was preached to them and that they received, by which they were saved. He specifically says, “If ye keep in memory what I preached unto you, unless ye have believed in vain.” How can my faith be in vain? Or how can my preaching or someone’s preaching be in vain?
Further, Apostle Paul describes the gospel that was preached, of the death and resurrection of Christ. “That Christ died for our sins according to the scriptures” (1 Corinthians 15:3), and that He was buried and resurrected (1 Corinthians 15:4), and we were planted in the likeness of His death, as well as the likeness of His resurrection.
For if we have been planted together in the likeness of His death, we shall be also in the likeness of His resurrection: Knowing this, that our old man is crucified with Him, that the body of sin might be destroyed, that henceforth we should not serve sin. For he that is dead is freed from sin. Romans 6:5-7
Many preach or testify of Christ, of His death and resurrection. But who today Truly preaches of Christ, of His death and resurrection?! Who today preaches or testifies of the death and resurrection of their old carnal man, of their sinful nature? That they have been indeed freed from sin, and the body of sin was truly destroyed?! Today, most preach of the forgiveness of sin. But of the actual freedom from sin, there is usually an explanation followed by, “But while we are in the flesh…”, “Well no one is perfect…”, “We cannot be truly free from sin, we just stop living a Lifestyle of sin…” etc.
And so, if a new being isn’t risen – then that means there is no faith in the resurrection of Christ – which means your faith is in vain, and you are still in your sins!
For if the dead rise not, then is not Christ raised: And if Christ be not raised, then your faith is in vain; ye are yet in your sins. 1 Corinthians 15:17
So if you are still in your sins – your faith is in vain – and you do not fully believe in the resurrection of Christ! Let not your faith be in vain!