2 Samuel 23:17-19

Abishai : the son of Zeruiah, David's sister; brother of Joab

Joab : son of Zeruiah, David's sister; commander of King David's army,son of Seraiah son of Kenaz of Judah; grand nephew of Caleb of Moses' time,a man whose descendants returned from exile in Babylon,ancestor of a family group who returned from exile headed by Obadiah the son of Jehiel

Zeruiah : daughter of Jesse; sister of David; mother of Abishai, Asahel and Joab

2 Samuel 23:23

David : a son of Jesse of Judah; king of Israel,son of Jesse of Judah; king of Israel