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also known as: Hadarezer
Hanun, the king of the Ammonites, hired among others the army of Hadadezer to assist him in his war against David. Joab, who was sent against this confederate host, found them in double battle array, the Ammonities toward their capital of Rabbah, and the Syrian mercenaries near Medeba.
In the battle which was fought, the Syrians were scattered, and the Ammonites in alarm fled into their capital.
After this Hadadezer went north “to recover his border” (2 Sam. 8:3, King James Version); but rather, as the Revised King James Version renders, “to recover his dominion”, i.e., to recruit his forces. Then followed another battle with the Syrian army thus recruited, which resulted in its being totally routed at Helam (2 Sam. 10:17).
All the spoils taken in this war, “shields of gold” and “very much brass,” from which afterwards the “brazen sea, and the pillars, and the vessels of brass” for the temple were made (1 Chr. 18:8), were brought to Jerusalem and dedicated to Jehovah.