Summary: The significance of His resurrection is impossible to exaggerate. It is the fundamental proof of His Messiahship and of the truth of Christianity. A classic sermon by A. B. Simpson.
"To whom also he showed himself alive after his passion by many infallible proofs, being seen of them forty days, and speaking of the things pertaining to the kingdom of God" (Acts 1:3).
Our Lord’s earthly life may be divided into three sections: before His passion, during His passion, and the forty-day interval between His resurrection and ascension.
Like the afterglow in an Oriental sky still shining long after the sun has disappeared, or like the Indian summer with its soft light and lingering sunshine, these days seem to have about them a mystic glory half way between the earthly and the heavenly. His feet still touched the earth, but His head was in the heavens.
The story of those days is but partly told, but we know enough to afford us seven distinct messages from the departing Master.
The Reality and Significance of the Resurrection
Strange it is that this should need to be demonstrated to Christian disciples, but it is the church of Christ that today is beginning to discredit the physical reality of the Lord’s resurrection. Therefore, God had made it a demonstrable fact supported by "many infallible proofs." The Roman guards who were stationed around the tomb and whose silly lie about the stealing of His body was the very best proof that that body had gone; the angel messengers who repeatedly announced that He was risen indeed; His repeated appearings to His disciples and the testimony of Thomas in spite of his own skepticism -- these form but a little part of the chain of evidence that so acute a mind as Paul’s considered unanswerable and that the profoundest judicial minds today have declared to be absolutely conclusive.
The nature of Christ’s resurrection is as clear as the fact is certain. The picture given by the evangelists leaves no doubt of the absolute identity of the Christ of Easter with the Crucified of Calvary and the Man of Galilee. The very marks of the thorns and the spear were visible and tangible. So real was His humanity that they could handle Him and know by the evidence of their senses that He had actual flesh and bones and that He could eat the broiled fish they set before Him and distinguish the taste of the honeycomb as well. But so transcendently more mighty was His resurrection state than even His former physical life that His body could pass through the closed door and the stone that sealed the sepulchre without hindrance, and could rise and ascend to heaven in defiance of the law of gravitation without the faintest effort.
The significance of His resurrection is impossible to exaggerate. It is the fundamental proof of His Messiahship and of the truth of Christianity. It is the evidence of our justification. It is the source of our sanctification. It is the guarantee of our future resurrection. It is the pledge of all power that we can ever need in this present life, and is the pattern according to which faith may claim the "exceeding greatness of his power ... according to the working of his mighty power, which he wrought in Christ, when he raised him from the dead."