This study reconstructs the numerological considerations behind a Judeo-Greek innovation in religious terminology, with a focus on its key element—Hellenization of the Hebrew name of God. It demonstrates that the Greek nomen sacrum
can also be interpreted as a sacred number, a fact that directly infuses the otherwise broad term κύριος with numinosity. This observation carries multiple implications for understanding the phenomena of nomina sacra and “names-numbers” as well as other related topics, such as the emergence of Greek and Hebrew alphabetic numerals, early Jewish and Christian numeric symbolism, and early binitarian theology.