1 Chronicles 11:9

7David lived in the stronghold; therefore they called it David’s city.

8He built the city all around, from Millo even around; and Joab repaired the rest of the city.

9David grew greater and greater, for the LORD of Armies was with him.

10Now these are the chief of the mighty men whom David had, who showed themselves strong with him in his kingdom, together with all Israel, to make him king, according to the LORD’s word concerning Israel.

11This is the number of the mighty men whom David had: Jashobeam, the son of a Hachmonite, the chief of the thirty; he lifted up his spear against three hundred and killed them at one time.