← LineageFeast Day for · Wednesday, 23 July 2025

John Cassian

c. 360 – c. 435 · Scythia Minor

Also known as Joannes Cassianus

Feast: 23 July (Catholic) · 29 February (Orthodox)

John Cassian
via Wikipedia

Highlights

Main contribution
Brought Egyptian monastic spirituality to the Latin West.
Best first read
Conferences
Primary source
Cassian, Collationes

Brought Egyptian monastic spirituality to the Latin West. Author of the Institutes and Conferences; founded monasteries at Marseilles.

Notable works

  • ·Conferences · 425
  • ·Institutes · 425

Primary sources

  • ·Cassian, Collationes
  • ·Cassian, De Institutis Coenobiorum
  • ·Gennadius, De Viris Illustribus 62
Cover of On the Incarnation by Athanasius
Daily reading

Book of the day

On the Incarnation

Athanasius of Alexandria

A reading pick tied to today's figure, quote, era, or event. Short, readable, and central: why God became man, written from inside the Nicene fight.

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Today: John Cassian — Patristic Lineage