Kontakion in the Third Tone Since thou hadst received God's grace to work ineffable marvels, godly-wise Parthenius, thou sacred worker of wonders, thou didst wholly cleanse the faithful of all their passions, casting wicked spirits out, O God-bearing Father; for this cause we sing thy praise as a great initiate of the divine grace of God.

Parthenios, Bishop of Lampsakos

Reading from the Synaxarion:

Saint Parthenius was born in Melitopolis on the Hellespont, the son of
a deacon named Christopher. Because of the miracles that he
wrought even as a young man, he was ordained a priest and then Bishop of
Lampsacus in the days of Saint Constantine the Great, from whom he received
great gifts and authority both to overturn the altars of the idols and
to raise up a church to the glory of Christ. Working many miracles
throughout his life, he reposed in peace an old man and full of days.

Apolytikion in the Fourth Tone
O God of our Fathers, ever dealing with us according to Thy
gentleness: take not Thy mercy from us, but by their entreaties guide our
life in peace.