“The themes of Christ’s descent into Hades and his victory over hell and death are treated extensively in surviving early Christian poetry.
We do not know precisely when the short hymn as the Easter troparion was composed. It is likely, however, that it was already written in the second century.
Christ is risen from the dead, trampling down death by death, and upon those in the tombs bestowing life!” (Archbishop Hilarion Alfeyev, Christ the Conqueror of Hell: The Descent into Hades, an Orthodox Perspective, pg. 34)