Missed opportunities

Abishai was one of the leaders of David’s army. Second Samuel 23:18,19 says,

Now Abishai, the brother of Joab, the son of Zeruiah, was chief of the thirty. And he wielded his spear against three hundred men and killed them and won a name beside the three. He was the most renowned of the thirty and became their commander, but he did not attain to the three.