Now these are the kings that reigned in the land of Edom before any king reigned over the children of Israel; Bela the son of Beor: and the name of his city was Dinhabah.
Israel was the chosen nation, elect in type; no other people in their national capacity held the covenant privilege the Jews held. The Lord knows His own by name, and many good souls outside Abraham's seed surely found favor with Him, but this genealogy traces the one nation incorporated into His peculiar bond. The Ishmaelites get scant notice because they were cast out as children of the bondwoman, and their rejection foreshadowed the unbelieving Jews rejected after.
AI summary
Commenting on 1 Chronicles 1:28-54
Now these [are] the kings that reigned in the land of Edom before [any] king reigned over the children of Israel; Bela the son of Beor: and the name of his city [was] Dinhabah. (m) He makes mention of the kings that came from Esau according to God's promise made to Abraham concerning him, that kings would come from him.
Before any king reigned over - Israel - See Gen 36:31 (note), etc., where the same verses occur, as I have supposed borrowed from this place; and see the notes there. Bela the son of Beor - "Balaam the impious son of Beor, the same as Laban the Syrian, who formed a confederacy with the sons of Esau, to destroy Jacob and his children; and...