First course for the first month - Instead of mentioning first, second, third, etc., month, the Targum names them thus: First month, Nisan; second, Aiyar; third, Sivan; fourth, Tammuz; fifth, Ab; sixth, Elul; seventh, Tishri; eighth, Marchesvan; ninth, Cisleu; tenth, Tebeth; eleventh, Shebat; twelfth, Adar. No mention is made of a veadar or intercalary month.
Jashobeam - Jashobeam is mentioned in marginal references as the chief of David‘s mighty men. He is called in 1 Chronicles 11:11 “the son of Hachmoni.” We learn from 1 Chronicles 27:3 that he was of the tribe of Judah, being descended from Perez (or Pharez), the son of Judah, from whom David himself sprang. See 1 Chronicles 2:3-15.