Keil & Delitzsch, on 1Chr 2:4

“And Thamar his daughter in law bore him Phares and Zara. So all the sons of Juda were five.”

“And the sons of Zerah,.... The other twin of Judah: Zimri, and Ethan, and Heman, and Calcol, and Dara: five of them in all; the Targum calls them governors, and adds, on whom the spirit of prophecy dwelt; and in the Jewish chronology (n) they are said to prophesy in Egypt; and the four last are supposed to be the same with those in Kg1 4:31. See Gill on Kg1 4:31. (n) Seder Olam Rabba, c. 20. p. 52.”

Imported from an open dataset — not yet checked against the printed edition.