And of the Shilonites: Asaiah the firstborn, and his sons.
The first verse looks back upon the foregoing genealogies, and tells us they were gathered out of the books of the kings of Israel and Judah, not that which we have in the canon of scripture, but another civil record, which was authentic, as the king's books with us. Mentioning Israel and Judah, the historian takes notice of their being carried away to Babylon for their transgression.
Commenting on 1 Chronicles 9:1-13
And of the sons of Zerah,.... Another son of Judah: Jeuel, and their brethren; six hundred and ninety; or their kinsmen; for this number includes all of the posterity of Pharez, Shelah and Zerah mentioned.
1Ch 9:5 Of the family of Shelah, Asaiah the first-born, and his other) sons. בּנין, after הבּכור, can only be understood of the other sons or descendants. But the epithet give to Asaiah, השּׁילני, is surprising, for it is a formation from שׁילה or שׁילן, and appears to denote a native of Shiloh, a well-known city of Ephraim.