2 Samuel 23:17-18

17and he said, “‘Far be it from me, Adonai, that I should do this—the blood of the men who went in jeopardy of their lives?’” So he would not drink it. These things the three mighty men did.

18Now Abishai, the brother of Joab, son of Zeruiah, was chief of the Thirty. Once he wielded his spear against 300 and killed them—he had a reputation among the Three.