Christianfeast day:

Asclepiades of Antioch, Isaac Jogues, Luke the Evangelist, Peter of Alcantara,can also be celebrated on October 19., October 18 (Eastern Orthodox liturgics)

A Christian feast day honoring Saints Asclepiades of Antioch, Isaac Jogues, Luke the Evangelist, and Peter of Alcantara on October 18 in various liturgical calendars.
On October 18, multiple Christian traditions observe a shared feast honoring four saints: Asclepiades of Antioch, celebrated for his episcopal service and martyrdom; Isaac Jogues, a 17th-century Jesuit missionary and martyr in North America; Luke the Evangelist, author of the third Gospel and Acts; and Peter of Alcantara, noted for his Franciscan reform work. Eastern Orthodox churches commemorate these figures in their liturgical cycle, with special readings and hymns. Catholic communities may also honor them on this date, although Peter of Alcantara can also be celebrated on October 19. These observances reflect centuries of devotion and the enduring legacy of these saints across different Christian denominations.
feast day Asclepiades of Antioch Isaac Jogues Luke the Evangelist Peter of Alcantara October 18 (Eastern Orthodox liturgics)

Asclepiades of Antioch

Commemorates Saint Asclepiades of Antioch, honoring his leadership and martyrdom in early Christian history.
Asclepiades served as the bishop of Antioch in the early 3rd century, guiding the Christian community during times of persecution under Emperor Decius. According to tradition, he endured exile and ultimately died for his faith, becoming venerated as a martyr. The feast day on October 18 honors his steadfast commitment to his flock and the development of the early Church. Liturgical services include special prayers, readings, and hymns recounting his life. Churches dedicated to Asclepiades may hold processions and display relics.
Asclepiades of Antioch

Isaac Jogues

Honors Saint Isaac Jogues, a 17th-century French Jesuit missionary and martyr in North America.
Born in 1607 in France, Isaac Jogues joined the Jesuit order and traveled to New France to evangelize Indigenous peoples. He was captured, tortured by Iroquois warriors, and later escaped to France for medical attention before returning to continue his mission. In 1646, he was martyred at Ossernenon, now in New York State. Canonized in 1930, his feast on October 18 commemorates his dedication and sacrifice, with Catholics observing through Mass readings, veneration of relics, and educational programs on early missionary work.
Isaac Jogues

Luke the Evangelist

Celebrates Saint Luke the Evangelist, author of the Gospel of Luke and the Acts of the Apostles.
Saint Luke the Evangelist, a physician and companion of Paul, authored the Gospel of Luke and the Acts of the Apostles in the 1st century AD. His detailed accounts emphasize compassion, miracles, and the universal message of Christianity. Patron saint of artists, physicians, and surgeons, Luke is often symbolized by the winged ox in Christian art. On October 18, churches around the world honor him with readings from his writings, liturgical hymns, and reflections on healing and charity. Icons and artworks frequently depict scenes from his Gospel, reinforcing his legacy in art and theology.
Luke the Evangelist

Peter of Alcantara,can also be celebrated on October 19.

Marks the feast of Saint Peter of Alcantara, known for his Franciscan reforms and ascetic life.
Saint Peter of Alcantara (1499–1562) was a Spanish Franciscan friar renowned for his strict asceticism and role in reforming the Franciscan Order. A spiritual counselor to Saint Teresa of Ávila, he established convents and promoted a life of prayer, penance, and humility. Canonized in 1669, his feast falls on October 18, though some traditions observe it on October 19. Devotees celebrate with special prayers, retreats, and hymns reflecting his spiritual legacy.
Peter of Alcantara

October 18 (Eastern Orthodox liturgics)

An Eastern Orthodox liturgical observance that commemorates the saints and events listed in the Orthodox Church calendar for October 18th.
On October 18th, the Eastern Orthodox Church remembers a host of saints, martyrs, and venerable ascetics honoured on this date. The liturgical services include special hymns (troparia and kontakia) and readings chosen for the day's commemorations. Clergy and faithful participate in the Divine Liturgy, offering prayers and venerating the relics or icons of the commemorated saints. The day's observances highlight the spiritual virtues and exemplary lives of those commemorated, inspiring the faithful in their own journey of faith. Local parishes may hold festal meals or gatherings to foster community and reflection on the saints' enduring legacies. Through centuries of tradition, the October 18th liturgical commemorations have remained a cornerstone of the Eastern Orthodox spiritual calendar.
October 18 (Eastern Orthodox liturgics)