The holy Unmercenaries, Sts. Cosmas and Damian (source)
Always having Christ active in you, Unmercenary Saints, you work wonders in the world, curing the sick; for your surgery is an inexhaustible source; when drawn on, it overflows yet more; when poured out, it still runs over; emptied each day, each day filled up; giving to all, yet not failing; and those who draw receive their fill of remedies, and it remains unexhausted. What then shall we call you? Healing physicians of souls and bodies, healers of incurable sufferings, freely curing all, who have received gifts of grace from the Saviour Christ, who grants us his great mercy.
-Doxastikon of the Apostcha
Through the prayers of our Holy Fathers, Lord Jesus Christ our God, have mercy on us and save us! Amen!