A part of David's bodyguard
So Zadok the priest, and Nathan the prophet, and Benaiah the son of Jehoiada, and the Cherethites, and the Pelethites, went down, and caused Solomon to ride upon king David's mule, and brought him to Gihon. (1 Kings 1:38)
And Benaiah the son of Jehoiada was over both the Cherethites and the Pelethites; and David's sons were chief rulers. (2 Samuel 8:18)
And there went out after him Joab's men, and the Cherethites, and the Pelethites, and all the mighty men: and they went out of Jerusalem, to pursue after Sheba the son of Bichri. (2 Samuel 20:7)
Now Joab was over all the host of Israel: and Benaiah the son of Jehoiada was over the Cherethites and over the Pelethites: (2 Samuel 20:23)
And Benaiah the son of Jehoiada was over the Cherethites and the Pelethites; and the sons of David were chief about the king. (1 Chronicles 18:17)
Absalom's escort
And all his servants passed on beside him; and all the Cherethites, and all the Pelethites, and all the Gittites, six hundred men which came after him from Gath, passed on before the king. (2 Samuel 15:18)