1 Corinthians 15:17

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

If Christ has not been raised, faith is vain, futile, empty and useless, and believers remain in their sins, still guilty and unforgiven. The resurrection is therefore essential to Christian faith and a fundamental truth, supported by witnesses who saw the risen Christ. It is the ground of preaching, faith, and forgiveness, so that without it there is no pardon and no removal of guilt.

Without Christ's resurrection preaching is empty, and those who testified that God raised Christ are false witnesses against God. The dead then do not rise, and faith itself is empty. The verse is attested by eyewitnesses to the risen Christ, including testimony by the Roman guard who saw it and witness borne by the apostles with great power to the risen Lord Jesus.

Christ rose to vindicate his claims, confirm his followers' faith, establish the truth of his divine nature, and make certain the promise of everlasting life to everyone who believes in him. His resurrection is the proof that sin is overcome and the dead will live. Without Christ's resurrection there is no resurrection of the dead, and without resurrection those who have fallen asleep in Christ have perished forever and are lost. So the hope of the righteous and of eternal life depends on resurrection, and death will not hold those who die in Christ but their sleep in the grave will end when deliverance comes.

The chapter teaches the literal resurrection of the dead, in which the risen person's identity does not depend on retaining the same particles of matter but on continuity of organization. The verse shows that the righteous dead do not enter heaven at death but await resurrection and remain in the grave until the resurrection. Without resurrection they would have perished rather than already entered heavenly life, for their hope of life with God depends on Christ's resurrection and their future resurrection. David can finally sit at God's right hand only because Christ has risen.

Faith itself must have a resurrection from dead indifference into living, active loyalty, since indifference denies Christ. A vain, unrisen faith becomes a resurrected faith that lifts the cross of Calvary and is lifted by it, stands in its own lot and place, and catches the inspiration of Christ's work for souls. Such faith endures by seeing Him who is invisible with the ardor of a Christian hero, takes a decided stand with Christ to gather with Him rather than scatter, and exerts a positive influence for good.