2:18–20  The lineage of Caleb in this subsection has no parallel in the Hebrew Bible (apart perhaps from 2:2, which has parallels in Exodus). Whether the Chronicler used an unknown source or whether this was his own creation, we cannot say for sure. (Another section on Caleb follows in 2:42–50a.)

One figure who might be significant here is Bezalel. In three texts in Exodus (31:2; 35:30; 38:22) he is the one whom Moses appointed to build the tabernacle. This might be another attempt of the Chronicler to tie the sanctuary tradition to the Judahite/Davidic line. In the late Persian era, when the status of the Second Temple still had to be consolidated, such a link would have been very valuable.

2:21–24  This subsection jumps back to Hezron, indicating his descendants from a later marriage. …