John Gill Bible Commentary

And I sent messengers out of the wilderness of Kedemoth,.... A city in the tribe of Reuben, and given by them to the Levites in later times, having been taken from the Amorites with others; near this lay a wilderness, which took its name from it, and seems to be the same with Jeshimon, Num 21:20. Aben Ezra takes it to be the wilderness of Matthanah, which according to Jerom (g) was situated on Arnon, twelve miles to the east of Medeba; see Num 21:18 from hence messengers were sent by Moses: unto Sihon king of Heshbon, with words of peace; in a peaceable and respectful manner, desiring to be at peace and in friendship with him, and a continuance of it, which was done to leave him inexcusable; as afterwards a like method was ordered to be taken, when they came to any city, to proclaim peace, and if an answer of peace was given, no hostilities were to be committed, Deu 20:10, saying; as follows. (g) De loc. Heb. fol. 93. C.