Greatmartyr Euphemia; Saint Olga, Equal of the Apostles and enlightener of the Russian Land

Orthodox Calendar, July 11 The Miracle of Saint Euphemia the All-Praised The holy Great Martyr Euphemia suffered martyrdom in the city of Chalcedon in the year 304, during the time of the persecution against Christians by the emperor Diocletian (284-305). One and a half centuries later, at a time when the Christian Church had become victorious within the Roman Empire, God deigned that Euphemia the All-Praised should again be a witness and confessor of the purity of the Orthodox teaching.

In the year 451 in the city of Chalcedon, in the very church where the glorified relics of the holy Great Martyr Euphemia rested, the sessions of the Fourth Ecumenical Council (July 16) took place. The Council was convened for determining the precise dogmatic formulae of the Orthodox Church concerning the nature of the God-Man Jesus Christ. This was necessary because of the widespread heresy of the Monophysites [“mono-physis” meaning “one nature”], who opposed the Orthodox teaching of the two natures in Jesus Christ, the Divine and the Human natures (in one Divine Person).

The Monophysites falsely affirmed that in Christ was only one nature, the Divine [i.e. that Jesus is God but not man,…