On Holy Saturday, the Church gathers in the dark, to sing: 

“O night of endless wonder, night of bliss, when every living creature held its breath as Christ robbed death and harrowed hopeless hell, restoring life to all those in the tomb! 

The Sacramentary, Sundays and Feasts © 1997, International Committee on English in the Liturgy, Inc.  

Homily text: http://www.ctredeemer.org/other/t_200412_homily.pdf