28 January (Eastern Orthodoxy) 1 February (Roman Martyrology) 8 June (Scottish Episcopal Church) 9 June (Church of England) 9 June (Roman Catholic Church) 10 June (Church in Wales) 10 June (Episcopal Church in the USA) 18 June (Maronite Church) 18 June (former Roman Catholic date)
Ephrem the Syrian (Syriac: ܐܦܪܝܡ ܣܘܪܝܝܐ, Afrêm Sûryāyâ; Greek: Ἐφραίμ ὁ Σῦρος; Latin: Ephraem Syrus; ca. 306 – 373) was a deacon, prolific Syriac-language hymnographer (writer of hymns) and theologian of the 4th century. He is venerated by Christians throughout the world, and especially among Syriac Christians, as a saint. Ephrem wrote a wide variety of hymns, poems and homilies in verse, as well as prose biblical commentaries. These were works of practical theology for the edification of the Church in troubled times. So popular were his works, that, for centuries after his death, Christian authors wrote hundreds of pseudepigraphous works in his name. Ephrem's works witness to an early, vibrant expression of Christian faith, little touched by the European modes of thought, and more engaged with eastern methods of discourse.

Life
Over four hundred hymns composed by Ephrem still exist. Granted that some have been lost, Ephrem's productivity is not in doubt. The church historian Sozomen credits Ephrem with having written over three million lines. Ephrem combines in his writing a threefold heritage: he draws on the models and methods of early Rabbinic Judaism, he engages skilfully with Greek science and philosophy, and he delights in the Mesopotamian/Persian tradition of mystery symbolism.
The most important of his works are his lyric, teaching hymns (ܡܕܖ̈ܫܐ, madrāšê). These hymns are full of rich, poetic imagery drawn from biblical sources, folk tradition, and other religions and philosophies. The madrāšê are written in stanzas of syllabic verse, and employ over fifty different metrical schemes. Each madrāšâ had its qālâ (ܩܠܐ), a traditional tune identified by its opening line. All of these qālê are now lost. It seems that Bardaisan and Mani composed madrāšê, and Ephrem felt that the medium was a suitable tool to use against their claims. The madrāšê are gathered into various hymn cycles. Each group has a title — Carmina Nisibena, On Faith, On Paradise, On Virginity, Against Heresies — but some of these titles do not do justice to the entirety of the collection (for instance, only the first half of the Carmina Nisibena is about Nisibis). Each madrāšâ usually had a refrain (ܥܘܢܝܬܐ, 'ûnîṯâ), which was repeated after each stanza. Later writers have suggested that the madrāšê were sung by all women choirs with an accompanying lyre.
Particularly influential were his Hymns Against Heresies. He devised hymns laden with doctrinal details to inoculate right-thinking Christians against heresies such as docetism. The Hymns Against Hereies employ colourful metaphors to describe the Incarnation of Christ as a fully human and divine. Ephrem asserts that Christ's unity of humanity and divinity represents peace, perfection and salvation; in contrast, docetism and other heresies sought to divide or reduce Christ's nature, and in doing so would rend and devalue Christ's followers with their false teachings.
Ephrem also wrote verse homilies (ܡܐܡܖ̈ܐ, mêmrê). These sermons in poetry are far fewer in number than the madrāšê. The mêmrê are written in a heptosyllabic couplets (pairs of lines of seven syllables each).
The third category of Ephrem's writings is his prose work. He wrote biblical commentaries on the Diatessaron (the single gospel harmony of the early Syriac church), on Genesis and Exodus, and on the Acts of the Apostles and Pauline Epistles. He also wrote refutations against Bardaisan, Mani, Marcion and others.
Ephrem wrote exclusively in the Syriac language, but translations of his writings exist in Armenian, Coptic, Georgian, Greek and other languages. Some of his works are only extant in translation (particularly in Armenian). Syriac churches still use many of Ephrem's hymns as part of the annual cycle of worship. However, most of these liturgical hymns are edited and conflated versions of the originals.
The most complete, critical text of authentic Ephrem was compiled between 1955 and 1979 by Dom Edmund Beck OSB as part of the Corpus Scriptorum Christianorum Orientalium.

Writings
Ephrem's artful meditations on the symbols of Christian faith and his stand against heresy made him a popular source of inspiration throughout the church. This occurred to the extent that there is a huge corpus of Ephrem pseudepigraphy and legendary hagiography. Some of these compositions are in verse, often a version of Ephrem's heptosyllabic couplets. Most of these works are considerably later compositions in Greek. Students of Ephrem often refer to this corpus as having a single, imaginary author called Greek Ephrem or Ephraem Graecus (as opposed to the real Ephrem the Syrian). This is not to say that all texts ascribed to Ephrem in Greek are by others, but many are. Although Greek compositions are the main source of pseudepigraphal material, there are also works in Latin, Slavonic and Arabic. There has been very little critical examination of these works, and many are still treasured by churches as authentic.
The most well known of these writings is the Prayer of Saint Ephrem that is a part of most days of fasting in eastern Christianity.

'Greek Ephrem'
Soon after Ephrem's death, legendary accounts of his life began to circulate. One of the earlier 'modifications' is the statement that Ephrem's father was a pagan priest of Abnil or Abizal. However, internal evidence from his authentic writings suggest that he was raised by Christian parents. This legend may be anti-pagan polemic or reflect his father's status prior to converting to Christianity.
The second legend attached to Ephrem is that he was a monk. In Ephrem's day, monasticism was in its infancy in Egypt. He seems to have been a part of the members of the covenant, a close-knit, urban community of Christians that had 'covenanted' themselves to service and refrained from sexual activity. Some of the Syriac terms that Ephrem used to describe his community were later used to describe monastic communities, but the assertion that he was monk is anachronistic. Later hagiographers often painted a picture of Ephrem as an extreme ascetic, but the internal evidence of his authentic writings show him to have had a very active role, both within his church community and through witness to those outside of it. Ephrem is venerated as an example of monastic discipline in Eastern Christianity. In the Eastern Orthodox scheme of hagiography, Ephrem is counted as a Venerable Monk.
Ephrem is popularly believed to have taken legendary journeys. In one of these he visits Basil of Caesarea. This links the Syrian Ephrem with the Cappadocian Fathers, and is an important theological bridge between the spiritual view of the two, who held much in common. Ephrem is also supposed to have visited Saint Pishoy in the monasteries of Scetes in Egypt. As with the legendary visit with Basil, this visit is a theological bridge between the origins of monasticism and its spread throughout the church.
On 5 October 1920, Pope Benedict XV proclaimed that Ephrem is a Doctor of the Church. This proclamation was made before critical editions of Ephrem's authentic writings were available.
The most popular title for Ephrem is Harp of the Spirit (Syriac: ܟܢܪܐ ܕܪܘܚܐ, Kenārâ d-Rûḥâ). He is also referred to as the Deacon of Edessa, the Sun of the Syrians and a Pillar of the Church.
Today, Saint Ephrem presents an engaging model of Asian Christianity, which might prove a valuable source of theological insight for Christian communities that wish to break out of the European cultural mould. Ephrem also shows that poetry is not only a valid vehicle for theology, but is in many ways superior to philosophical discourse for the purpose of doing theology. He also encourages a way of reading the Bible that is rooted more in faith than in critical analysis. Ephrem displays a deep sense of the interconnectedness of all created things, which could develop his role in the church into that of a 'saint of ecology'. There are modern studies into Ephrem's view of women that see him as a champion of women in the church. Other studies have focused on the importance of 'healing' imagery in Ephrem. Ephrem, then, confronts the contemporary church as an orthodox saint engaged in a theology that is at once nonwestern, poetic, ecological, feminist, and healing.