2 Samuel 21
15 Ref And the Philistines went to war again with Israel; and David went down with his people, and while they were at Gob they had a fight with the Philistines:
16 Ref And there came against David one of the offspring of the Rephaim, whose spear was three hundred shekels of brass in weight, and having a new sword, he made an attempt to put David to death.
17 Ref But Abishai, the son of Zeruiah, came to his help, and, turning on the Philistine, gave him his death-blow. Then David's men took an oath, and said, Never again are you to go out with us to the fight, so that you may not put out the light of Israel.