The resurrection guarantees our eternal salvation. It provides continuing proof of the forgiveness of our sins. Paul says about Jesus Christ, “who was delivered for our offenses, and was raised again for our justification,” Romans 4:25.
A more concise translation of that verse should be that He was “delivered because of our offenses, and raised again because of our justification.” God judicially placed our sins upon Christ, who died in our place on the cross. This price for sin, the blood of Christ, became the key to the redemption of all mankind. God accepted that redemption as a valid gift, and so the death of Christ on Calvary truly produced the forgiveness of every sin.
We know this because of the resurrection. In the resurrection, Jesus Christ is “declared to be the Son of God with power” (Romans 1:4). Because of the resurrection, the Bible says that Christ is able to deliver us from all sin.
“For he hath made him, who knew no sin, to be sin for us, that we might be made the righteousness of God in him,” 2 Corinthians 5:21.
The resurrection is indicative of the new life we have, to live in Christ. He said, “Because I live, ye shall live also” (John 14:19). He was speaking, not about that present moment, but about all moments subsequent to that, built on the living life of Jesus Christ. In other words, He was saying to all who believe in Him, “If you accept Me as your personal Savior, the life that I have brought from the dead becomes yours. You have a new life to live.”
Another possession we have because of the resurrection is power. The Apostle Paul describes this power as “the exceeding greatness of his power toward us who believe” (Ephesians 1:19). The word for “power” is kratos, which is the overarching power by which God presides over the world. It is the ultimate word for power in any language, and it’s hard to believe, but we have that kind of power! Because of this power of Christ, expressed in His resurrection, He is “...able to do exceedingly abundantly above all that we ask or think, according to the power that worketh in us,” Ephesians 3:20.
We have a living Christ, who dwells within us — “Christ in you, the hope of glory” (Colossians 1:27). He is ours, and His resurrection makes marvelous things possible, as we strive to fulfill the hope of His calling.
So, the resurrection proves that we have the forgiveness of every sin; it shows that we have a new life to live; and it endows us with power from on high, so that we can live a life that will bring credit to our risen Lord.
Finally, consider what the Apostle Paul said which is perhaps the key text in this matter:
“... if Christ be not raised, your faith is in vain, ye are yet in your sins. Then they also who are fallen asleep in Christ are perished. If in this life only we have hope in Christ, we are of all men most miserable. But now is Christ risen from the dead and become the first fruits of them that slept. For since by man came death, by man came also the resurrection of the dead. For as in Adam all die, even so in Christ shall all be made alive,” 1 Corinthians 15:17-22.