Saint Ephrem the Syrian (c. 306–373 AD) was a prominent Christian theologian, poet, and hymnographer from the region of Nisibis (modern-day Turkey). He is best known for his beautiful and deeply theological hymns and writings, which helped shape early Christian doctrine and devotion, especially in the Syriac-speaking church.

Ephrem served as a deacon and lived a life of asceticism and humility. He wrote extensively to defend the faith against heresies of his time, using poetry and song to teach sound doctrine in a way that was accessible to both clergy and laypeople. His hymns often explored themes like the incarnation, the Trinity, and the role of Mary, earning him the title “Harp of the Holy Spirit.”

He was declared a Doctor of the Church in the Roman Catholic tradition and remains highly revered in Eastern Christianity.