On Great and Holy Saturday the Church contemplates the mystery of the Lord's descent into Hades, the place of the dead. Death, our ultimate enemy, is defeated from within. "He (Christ) gave Himself as a ransom to death in which we were held captive, sold under sin. Descending into Hades through the Cross ... He loosed the bonds of death" (Liturgy of Saint Basil).
From an ancient homily for Holy Saturday
Something strange is happening---
there is a great silence on earth today,
a great silence and stillness.
The whole earth keeps silence because the King is asleep.
The earth trembled and is still
because God has fallen asleep in the flesh
and He has raised up all who have slept
ever since the world began.
God has died in the flesh, and hell trembles with fear.
He has gone to search for our first parent, as for a lost sheep.
Greatly desiring to visit those
who live in darkness and in the shadow of death,
He has gone to free from sorrow captive Adam and Eve,
He who is both God and the Son of Eve.
The Lord approached them bearing the cross,
the weapon that had won Him the victory.
At the sight of Him,
Adam (the first man He had created) struck his breast
and cried out to everyone:
"The Lord be with you all!"
Christ answered him, "And with your spirit!"
and took him by the hand and raised him up, saying:
"Awake, O sleeper, and rise from the dead,
and Christ will give you light!"
"I am your God,
who for your sake have become your Son.
Out of love for you and for your descendants,
I now by My own authority
command all who are held in bondage to come forth,
all who are in darkness to be enlightened,
all who are sleeping to arise.
I order you, O sleeper, to awake!
I did not create you to be held a prisoner in hell.
Rise from the dead,
for I am the life of the dead.
Rise up, work of My hands,
you who were created in My image.
Rise, let us leave this place,
for you are in Me and I am in you;
together we form only one person
and we cannot be separated.
For your sake I, your God, became your son;
I, the Lord, took the form of a slave;
I, whose home is above the heavens,
descended to the earth and beneath the earth.
For your sake, for the sake of mankind,
I became like a man without help, free among the dead.
For the sake of you, who left a garden,
I was betrayed in a garden,
and I was crucified in a garden.
See on My face the spittle I received
in order to restore to you the life I once breathed into you.
See there the marks of the blows I received
in order to refashion your warped nature in My image.
On My back, see the marks of the scourging I endured
to remove the burden of sin that weighs upon your back.
See My hands, nailed firmly to a tree,
for you who once wickedly stretched out your hands to a tree.
I slept on the cross
and a spear pierced My side
for you who slept in paradise
and brought forth Eve from your side.
My side has healed the pain in yours.
The spear that pierced Me
has sheathed the sword that was turned against you.
Rise, let us leave this place.
The enemy led you out of the earthly paradise.
I will not restore you to that paradise,
but I will enthrone you in heaven.
I forbade you the tree that was only a symbol of life,
but see, I who am Life Itself
am now one with you.
I appointed cherubim to guard you as slaves are guarded,
but now I make them worship you as God.
The throne formed by cherubim
awaits you, its bearers swift and eager.
The bridal chamber is adorned,
the banquet is ready,
the eternal dwelling places are prepared,
the treasure houses of all good things lie open.
The kingdom of heaven has been prepared for you from all eternity.