St. John Chrysostom. Mosaic, Monastery Hosios Loukas, Greece
Christ’s Church has not forgotten the spiritual ascetic labors of St. John Chrysostom. Almost every day in churches is celebrated the Liturgy that he composed; we hear his words every Paschal night—the call to enter into the joy of Christ’s resurrection. Over a thousand of his pastoral teachings and letters, his exegesis of the Holy Scripture, and his ascetic life have served for many centuries for the spiritual growth and salvation of the Church’s sons and daughters.
Source: Orthodox Christianity