This verse lists the names of David's mighty warriors, including Ahithophel the Gilonite, who was one of David's counselors. Despite being mentioned among the mighty men, Ahithophel later betrayed David by siding with Absalom during his rebellion. This serves as a reminder of the complexities of human nature and the potential for betrayal even among those who are esteemed. It also underscores the importance of discernment in choosing advisors and the need for loyalty and integrity in relationships.