Ephrem the deacon.
Ephraim, 2548 deacon of the church at Edessa, composed many works in the Syriac language, and became so distinguished that his writings are repeated publicly in some churches, after the reading of the Scriptures.
I once read in Greek a volume by him On the Holy Spirit, which some one had translated from the Syriac, and recognized even in translation, the incisive power of lofty genius. He died in the reign of Valens.