Whose sisters were Zeruiah and Abigail..... That is, sisters of David:
and the sons of Zeruiah; Abishai, and Joab, and Asahel, three; all valiant men and captains in David's army; their father's name is nowhere mentioned.
Related Commentaries of 1 Chronicles 2:16
1 Chronicles 2:16
16 Whose sisters were Zeruiah, and Abigail. And the sons of Zeruiah; Abishai, and Joab, and Asahel, three.