Cephas

The story behind Cephas

Cephas derives from the Aramaic word *kēphā*, meaning "rock" or "stone." This term was used as a cognomen in the Aramaic-speaking Levant and entered Greek as *Kēphás* (Κηφάς), which was then Latinized to *Cephas*. The name belongs to a family of related words across Semitic languages denoting solid, rocky material. Its meaning parallels the Greek *Petros*, also signifying "rock" or "stone," and these names were often used interchangeably in Greco-Roman antiquity to convey similar symbolic connotations of strength and stability.

Cephas is most famously borne by Saint Peter (Simon Peter), one of Jesus's twelve apostles, to whom Jesus gave the Aramaic name Cephas according to the New Testament. The Gospel of Matthew records Jesus saying, "Thou art Peter [Greek: *Petros*], and upon this rock [*petra*] I will build my church," with the Aramaic-origin name becoming foundational to Christian theology and ecclesiology. Through Saint Peter's prominence in Christian tradition—as the "rock" upon which the Church is built and as the first Pope in Catholic theology—the name Cephas gained enduring religious significance. Though less common than its Greek equivalent Peter, the Aramaic form Cephas remained in use among Christian communities and eventually appeared in English-speaking cultures, where it experienced modest revival during the 19th century, particularly in Protestant communities valuing biblical names.