"The earth trembled and was still when God arose in judgment." The resurrection of Christ is the judgment and condemnation of those who have turned away from God. This judgment was prefigured by the angel who passed through the land of Egypt destroying the first-born of the Egyptians.
The Israelites marked the doors of their houses with the blood of the paschal lamb. We are the new Israel, and "Christ our Pasch is sacrificed." We mark ourselves with His blood, which we enjoy in the Holy Eucharist. We have been pardoned, we are saved, we shall live.
"He is risen." The resurrection of Christ is a pledge of our own resurrection. It is the foundation upon which our faith rests. It is the guarantee of our redemption and God's assurance that our sins are forgiven and that we are called to eternal life. "This is the day which the Lord hath made; let us be glad and rejoice therein. Give praise to the Lord, for He is good, for His mercy endures forever. Alleluia." "Christ our Pasch is sacrificed. . . . The Lamb redeems the sheep. Christ, the innocent One, hath reconciled sinners to the Father." — Excerpted from The Light of the World by Benedict Baur, O.S.B.