These are the names of David’s warriors: Josheb-Basshebeth, a Tahkemonite, was head of the officers. ¹  He killed eight hundred men with his spear in one battle. ² 

Abishai son of Zeruiah, the brother of Joab, was head of the three. ¹  He killed three hundred men with his spear and gained fame among the three. ²