TSK · 2 Samuel 23:18

The three sons of Zeruiah were there, Joab, and Abishai, and Asahel: and Asahel was as light of foot as a wild gazelle.

The rest of the people he committed into the hand of Abishai his brother; and he put them in array against the children of Ammon.

David sent forth the people, a third part under the hand of Joab, and a third part under the hand of Abishai the son of Zeruiah, Joab's brother, and a third part under the hand of Ittai the Gittite. The king said to the people, "I will surely go forth with you myself also."

and their sisters were Zeruiah and Abigail. The sons of Zeruiah: Abishai, and Joab, and Asahel, three.

If a man prevails against one who is alone, two shall withstand him; and a threefold cord is not quickly broken.