2 Samuel 23:18

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 23:1

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

Israel : a citizen of Israel.,a member of the nation of Israel

Jacob : the second so of a pair of twins born to Isaac and Rebeccaa; ancestor of the 12 tribes of Israel,the nation of Israel,a person, male,son of Isaac; Israel the man and nation

Jesse : a son of Obed; the father of David the king and ancestor of Jesus,son of Obed of Judah; father of David