Abishai in the Bible

1 Chronicles 2:16 Whose sisters were Zeruiah, and Abigail. And the sons of Zeruiah; Abishai, and Joab, and Asahel, three.

2 Samuel 23:18 And Abishai, the brother of Joab, the son of Zeruiah, was chief among three. And he lifted up his spear against three hundred, and slew them, and had the name among three.

Seeks Saul's life

1 Samuel 26:6-8 Then answered David and said to Ahimelech the Hittite, and to Abishai the son of Zeruiah, brother to Joab, saying, Who will go down with me to Saul to the camp? And Abishai said, I will go down with thee. 7 So David and Abishai came to the people by night: and, behold, Saul lay sleeping within the trench, and his spear stuck in the ground at his bolster: but Abner and the people lay round about him. 8 Then said Abishai to David, God hath delivered thine enemy into thine hand this day: now therefore let me smite him, I pray thee, with the spear even to the earth at once, and I will not smite him the second time.

2 Samuel 2:24 Joab also and Abishai pursued after Abner: and the sun went down when they were come to the hill of Ammah, that lieth before Giah by the way of the wilderness of Gibeon.
2 Samuel 3:30 So Joab and Abishai his brother slew Abner, because he had slain their brother Asahel at Gibeon in the battle.

1 Chronicles 18:12 Moreover Abishai the son of Zeruiah slew of the Edomites in the valley of salt eighteen thousand.

2 Samuel 10:10 And the rest of the people he delivered into the hand of Abishai his brother, that he might put them in array against the children of Ammon.
2 Samuel 10:14 And when the children of Ammon saw that the Syrians were fled, then fled they also before Abishai, and entered into the city. So Joab returned from the children of Ammon, and came to Jerusalem.

Seeks the life of Shimei

2 Samuel 16:9 Then said Abishai the son of Zeruiah unto the king, Why should this dead dog curse my lord the king? let me go over, I pray thee, and take off his head.
2 Samuel 19:21 But Abishai the son of Zeruiah answered and said, Shall not Shimei be put to death for this, because he cursed the LORD'S anointed?

2 Samuel 18:2 And David sent forth a third part of the people 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. And the king said unto the people, I will surely go forth with you myself also.
2 Samuel 18:5 And the king commanded Joab and Abishai and Ittai, saying, Deal gently for my sake with the young man, even with Absalom. And all the people heard when the king gave all the captains charge concerning Absalom.

2 Samuel 20:1-22 And there happened to be there a man of Belial, whose name was Sheba, the son of Bichri, a Benjamite: and he blew a trumpet, and said, We have no part in David, neither have we inheritance in the son of Jesse: every man to his tents, O Israel. 2 So every man of Israel went up from after David, and followed Sheba the son of Bichri: but the men of Judah clave unto their king, from Jordan even to Jerusalem. 3 And David came to his house at Jerusalem; and the king took the ten women his concubines, whom he had left to keep the house, and put them in ward, and fed them, but went not in unto them. So they were shut up unto the day of their death, living in widowhood. 4 Then said the king to Amasa, Assemble me the men of Judah within three days, and be thou here present. ...

2 Samuel 21:17 But Abishai the son of Zeruiah succoured him, and smote the Philistine, and killed him. Then the men of David sware unto him, saying, Thou shalt go no more out with us to battle, that thou quench not the light of Israel.

1 Chronicles 11:15-20 Now three of the thirty captains went down to the rock to David, into the cave of Adullam; and the host of the Philistines encamped in the valley of Rephaim. 16 And David was then in the hold, and the Philistines' garrison was then at Bethlehem. 17 And David longed, and said, Oh that one would give me drink of the water of the well of Bethlehem, that is at the gate! 18 And the three brake through the host of the Philistines, and drew water out of the well of Bethlehem, that was by the gate, and took it, and brought it to David: but David would not drink of it, but poured it out to the LORD, ...