Mysteries - St. Seraphim of Sarov & St. John of Kronstadt GOC

Mysteries

On the Holy Rites/Sacraments of the Orthodox Church

In the Divine Liturgy: on “Changing Them by Thy Holy Spirit"

St. Basil the Great (c. AD 330- A.D. 379)

The Church's Mystagogy, Chapter 24: On the Grace of the Holy Spirit in the Divine Liturgy

St. Maximus the Confessor (c. AD 580 - AD 662)