Let us hymn John, the holy hierarch of Christ, the advocate given us by God, who, applying himself to unceasing prayer, and strengthened by the serving of the Liturgy and communion of the most holy Mysteries, went forth bravely to his labor, hastening to the homes of the suffering and to those treated in hospitals.  Wherefore, revealed as sanctified and merciful, he was vouchsafed from on high the gifts of healing and clairvoyance; and now, in heaven, he prayeth with boldness for the salvation of our souls.

Rejoice, O holy hierarch, father John, speedy helper amid misfortunes!

What is an Akathist?  An akathist (Greek, akathistos) is a hymn dedicated to a saint, holy event, or one of the persons of the Holy Trinity. The word akathist itself means "not sitting." (Source:  https://orthodoxwiki.org/Akathist)