Ephrem is known for a theology that relies heavily on symbol and for a keen awareness of Jewish exegetical traditions. Yet he is also our earliest source for the reception of Nicaea among Syriac-speaking Christians. It is in his eighty-seven Hymns on Faith - the longest extant piece of early Syriac literature - that he develops his arguments against subordinationist christologies most fully. These hymns, most likely delivered orally and compiled after the author's death, were composed in Nisibis and Edessa between the 350s ans 373. They reveal an author conversant with Christological debates further to the west, but responding in a uniquely Syriac idiom. As such, they form an essential source for reconstructing the development of pro-Nicene thought in the eastern Mediterranean.