דברי הימים א, פרק ב׳, פסוק י׳

Tracing a family tree usually follows a strict order of birth, but a significant historical destination can change how a lineage is recorded. The genealogy breaks from the natural family order to focus entirely on the direct path leading to King David. Rather than beginning with the oldest brother Jerahmeel, his younger brother Ram is moved to the forefront. This intentional shift serves to honor David, who descends directly from Ram [מצודת דוד, מלבי״ם].

Because the primary goal is to establish David's royal background, the record becomes highly selective. From each generation, only a single man is chosen. Every listed individual serves strictly as a vital link in the chain that eventually reaches Jesse, the father of David [מלבי״ם].

This effort to honor David also influences how his ancestors are described. Nahshon is specifically highlighted with the title of prince to emphasize that David came from a line of established leaders and men of authority [רש״י, רד״ק]. Historically, this ancestor is the well-known Nahshon, son of Amminadab, who served as the leader of his tribe during the days of Moses and the Exodus from Egypt [רלב״ג, ביאור שטיינזלץ].