Then David sent out the troops, one third under the command of Joab, one third under the command of Joab’s brother Abishai son of Zeruiah, and one third under the command of Ittai the Gittite. The king said to the troops, “I must certainly go out with you also.”
Then David said to Abishai, “Now Sheba son of Bichri will do us more harm than Absalom. So take your lord’s servants and pursue him lest he find for himself fortified cities and escape from our sight.”
But Abishai son of Zeruiah came to his aid, struck the Philistine and killed him. Then the men of David swore to him, saying, “You must not go out with us to battle anymore. You must not quench the lamp of Israel!”
and said: “Far be it for me that I should do this before my God! Can I drink the blood of these men who risked their lives?”—for they brought it at the risk of their lives and he would not drink it. Such were the exploits of the Three mighty men.
Then David spoke and asked Ahimelech the Hittite and Joab’s brother Abishai son of Zeruiah, saying, “Who will go down with me to Saul in the camp?” “I will go down with you,” Abishai answered.