1 Samuel 28:2
And David said to Achish, Surely thou shalt know what thy servant can do. And Achish said to David, Therefore will I make thee keeper of mine head for ever.
Cross-reference
In 1 Samuel 27:10, David lies to Achish about raiding Judah; here he again feigns loyalty—both show his deception.
In 1 Samuel 29:1, the narrative continues as the Philistines assemble at Aphek, moving toward the battle foreshadowed here.
1 Samuel 29:2 shows David and his men marching with Achish, fulfilling Achish's appointment of David as bodyguard.
In 1 Samuel 29:8, David protests his dismissal, feigning eagerness to fight—a continuation of the false loyalty from his pledge.
2 Samuel 16:16-19 has Hushai feigning loyalty to Absalom, mirroring David's hypocritical pledge of service to Achish.
Romans 12:9 commands love without hypocrisy, contrasting sharply with David's deceptive vow of loyalty to Achish.
2 Samuel 16:19 has Hushai pledging to serve Absalom as he served David, directly paralleling David's offer of perpetual service to Achish.