Amaleqi (עֲמָלֵקִי) is the gentilic form identifying an individual as an Amalekite. It appears throughout the historical narratives where Amalekites interact with Israel — from the wilderness encounters to David's battles to the report of the young Amalekite man who brought news of Saul's death (2 Samuel 1:8).
The self-identified Amalekite in 2 Samuel 1 who claims to have delivered the killing blow to Saul and brought his crown to David illustrates the theological complexity of the Amalek theme. Whether his account is true or fabricated, David executes him — not as vengeance for Saul, but because he confessed to killing the LORD's anointed. Even a member of Israel's archetypal enemy cannot escape the weight of covenantal accountability.
The gentilic Amaleqi in every occurrence carries this narrative freight — not merely an ethnic label but a signal to readers that the story is entering a zone of spiritual warfare, divine testing, and covenant consequence. Gentilic terms in biblical narrative are rarely neutral.