Nahash was a king of Ammon remembered for his conflict with Israel during the early monarchy.
His most prominent appearance occurs in 1 Samuel 11, when he led an Ammonite army against Jabesh-gilead, an Israelite town east of the Jordan River.
The inhabitants of Jabesh offered to make a treaty and become subject to Nahash. The king responded with an exceptionally harsh condition: he would accept their submission only if the right eye of every man were put out.
The demand was intended to humiliate the community and demonstrate Ammonite power over Israel.
The elders of Jabesh requested seven days to seek assistance. Messengers traveled through Israel and eventually reached Gibeah, where Saul learned of the crisis.
Saul was angered by the threat and summoned the Israelites to assemble for war. He organized a large force and marched to relieve Jabesh-gilead.
The Israelite army attacked the Ammonite camp in the morning and inflicted a decisive defeat. The surviving Ammonites were scattered.
The victory was an important turning point in Saul's early kingship. It demonstrated his ability to organize the tribes and defend threatened Israelite communities.
A king named Nahash appears again in the narrative of David. According to 2 Samuel 10, Nahash had shown kindness to David, although the Bible does not explain the circumstances.
After Nahash died, David sent representatives to express sympathy to his son Hanun, who had succeeded him as king of Ammon.
Many interpreters identify the Nahash defeated by Saul with Hanun's father. This is possible, especially because an Ammonite enemy of Saul might later have supported David while David was estranged from Saul.
However, the biblical accounts do not explicitly establish that the two references concern the same man. A lengthy reign would be required under some chronological reconstructions.
For the present database, they are treated as one probable identification rather than as two certainly distinct rulers.
No contemporary royal inscription has been securely identified as belonging to this Nahash.
Nahash is important because his attack on Jabesh-gilead helped establish Saul's military and political authority. The episode demonstrates the vulnerability of Israelite settlements east of the Jordan and the importance of tribal cooperation during the formation of the monarchy. Nahash also illustrates the changing relationships among Israel, Ammon, Saul, and David.
If the Nahash of 1 Samuel 11 was also Hanun's father, his career extended from open hostility toward Saul to a more favorable relationship with David. The uncertainty surrounding this identification is an important reminder that biblical accounts do not always provide enough chronological information to reconstruct complete royal biographies.
Nahash besieges Jabesh-gilead. The inhabitants request terms of surrender. Nahash demands the mutilation of the defenders.
The elders seek assistance from Israel. Saul organizes an army to relieve Jabesh-gilead. Israelite forces defeat and scatter the Ammonites.
A king named Nahash later shows kindness to David. Nahash dies and his son Hanun succeeds him, according to 2 Samuel 10.
Nahash is a central figure in the account of Saul's victory at Jabesh-gilead. The defeat of his army provides one of the earliest demonstrations of Saul's effectiveness as Israel's king. The victory leads to a public renewal of the kingship at Gilgal.
The later account of Nahash and David introduces another important theme: the obligations of loyalty, kindness, and diplomacy between neighboring royal houses. David's attempt to honor Nahash after his death ultimately leads to conflict with Hanun, the new Ammonite king.