Within the Herodian temenos in Jerusalem, a warning inscription prohibited non-Jews, under penalty of death, from proceeding any further inward. This was mounted on a low stone balustrade that encircled an area larger than the actual holy ground. As suggested in research, the underlying pentateuchal law for the inscription was הזר הקרב יומת, “the unauthorized encroacher shall be put to death.” The subjection of gentiles to this law, in particular, and its application even when they had not, de facto, trespassed on holy ground remain, however, unexplained. The article suggests that the inscription applied הזר הקרב יומת to a זר, in the sense of “a foreigner,” who merely קרב, “draws near” to sacred ground. A further suggestion is that this reading and implementation of the biblical law reflects a preemptive endeavor to blunt Jewish objection to a major cultic innovation by Herod: granting gentiles access to the Jerusalem temenos.