Answer :
Final answer:
Saul, David, and Solomon are the three kings who reigned during the united monarchy period in Israel's history, marking the establishment of a monarchy in response to threats from the Philistines.
Explanation:
The three kings in question reigned during what historians refer to as the united monarchy period of Israel's history, which included Saul, David, and Solomon. These kings are credited with establishing a monarchy in response to threats from the Philistines. Saul became king around 1020 BCE and, under his rule and that of his successors, David and Solomon, the Hebrews transitioned from a communalist society to one with a monarchy, complete with an organized army, a bureaucracy, and a capital at Jerusalem. The Philistines, known as one of the groups of Sea Peoples, were a formidable force who clashed with the Hebrews before being eventually subdued. The united monarchy period is supported by archaeological evidence and extrabiblical sources that affirm many biblical accounts of this era.