1 Chronicles 11:6

And Joab the son of Zeruiah and the servants of David went out and met them by the pool of Gibeon; and they sat down, one on the one side of the pool and the other on the other side of the pool.

Then the king and his men went to Jerusalem against the Jebusites, the inhabitants of the land, and they said to David, “You shall not come in here, but the blind and lame will turn you away”; thinking, “David cannot enter here.”

Now Joab the son of Zeruiah was over the army, and Jehoshaphat the son of Ahilud was recorder;

And he had conferred with Joab the son of Zeruiah and with Abiathar the priest; and following Adonijah, they helped him.

Jehoiada the son of Benaiah, and Abiathar succeeded Ahithophel; and Joab was the commander of the king’s army.