דברי הימים א, פרק כ״ו, פסוק ל״א

As King David's reign neared its end, a structured effort was undertaken to organize and assess the Levite families. Among these groups was the family of Hebron, which required clear leadership and careful evaluation. Jeriah served as the head of this entire family and all its ancestral houses [מצודת דוד, ביאור שטיינזלץ]. Under his guidance, a thorough census was conducted. The family members were not merely counted; they were actively sought out and examined to identify the most capable and valiant men among them [מצודת דוד, ביאור שטיינזלץ]. This specific search was directed toward the Levites residing across the Jordan River [רד״ק].

This detailed organization took place during the fortieth year of David's rule. This specific timeline applies to all the previously recorded divisions and arrangements of the Levites, which were finalized in the twilight of David's life, just as his son Solomon was made king [רש״י, רד״ק]. This late-stage planning stands in sharp contrast to the military divisions of the Israelites, which were established at the very dawn of David's kingship. The early timing of the military setup is evident because those records include warriors like Asahel, who died during the initial phases of David's rule [רד״ק].

The examination of these capable men took place in Jazer Gilead. The primary approach among commentators is that Jazer was a city situated in the region of Gilead, although a different perspective suggests that Jazer may have actually been the name of an individual [רלב״ג].