'Mercenaries' in the Bible

Jehoida's son Benaiah supervised the special forces and mercenaries, and David's sons were priests.

When the Ammonites realized that they had created quite a stink with David, they hired 20,000 Aramean mercenaries from Beth-rehob and Zobah, along with the king of Maacah and 1,000 men, and 12,000 men from Tob.

All of his staff were going on ahead of him that is, all of the special forces and mercenaries, all of the Gittites, and 600 men who had come to serve him from Gath, went on ahead of the king.

So Joab's men, the special forces and mercenaries, and all of David's elite forces left Jerusalem in pursuit of Bichri's son Sheba.

Joab commanded the entire army of Israel, Jehoiada's son Benaiah commanded the special forces and mercenaries,