Having been with Achish for more than a year, there was a lot of time for David to demonstrate his loyalty to the Philistine king.1 Achish’ confidence in David was, however, founded on David’s deception (cf. 1 Samuel 27:8–12).2 He thought that David was an enemy of Saul and loyal to him. In this regard, he is presented to us as a foil for Saul. Saul thought that David was a dangerous enemy, while he was actually a loyal bodyguard. Achish considered David to be his loyal bodyguard, while he was actually a dangerous enemy.3
3 Les princes des Philistins dirent: Que font ici ces Hébreux? Et Akisch répondit aux princes des Philistins: N'est-ce pas David, serviteur de Saül, roi d'Israël? Il y a longtemps qu'il est avec moi, et je n'ai pas trouvé la moindre chose à lui reprocher depuis son arrivée jusqu'à ce jour.