As we remember the Lord’s passion and death on the cross:

“… He [Jesus] surrendered himself as a ransom to death by which we were held captive, sold into slavery under sin. Descending by the cross into Hades to fulfill all things in himself, he freed us from Death’s despair, and rose on the third day, preparing the way for the resurrection of all flesh from the dead…”

[From the Liturgy of St. Basil the Great]