Numbers 21:26

26 For Esebon is the city of Seon king of the Amorites; and he before fought against the king of Moab, and they took all his land, from Aroer to Arnon.

Numbers 21:26 Meaning and Commentary

Numbers 21:26

For Heshbon was the city of Sihon the king of the Amorites,
&c.] His royal city, where he kept his palace, where he had resided for some time, and perhaps some of his predecessors; and therefore being now in his possession when taken by the Israelites, they had a good right and title to keep it, and dwell in it: and indeed this is here given as a reason of it,

who had fought against the former king of Moab;
either the king that reigned before Balak, or some king of Moab, that reigned formerly, against whom one of the name of Sihon, which might be a common name to the kings of the Amorites, as Pharaoh to the Egyptians, had engaged in war:

and taken all his land out of his hand, even unto Arnon;
and had been in the hands of the Amorites some years; and therefore the Moabites had no reason to object to the Israelites dwelling in it, and possessing it, which they had not taken from them, but from the Amorites in a lawful war. And for proof of this, reference is had to the bards and poets of those times, who were the persons that transmitted in verse the history of famous actions to posterity.

Numbers 21:26 In-Context

24 And Israel smote him with the slaughter of the sword, and they became possessors of his land, from Arnon to Jaboc, as far as the children of Amman, for Jazer is the borders of the children of Amman.
25 And Israel took all their cities, and Israel dwelt in all the cities of the Amorites, in Esebon, and in all cities belonging to it.
26 For Esebon is the city of Seon king of the Amorites; and he before fought against the king of Moab, and they took all his land, from Aroer to Arnon.
27 Therefore say they who deal in dark speeches, Come to Esebon, that the city of Seon may be built and prepared.
28 For a fire has gone forth from Esebon, a flame from the city of Seon, and has consumed as far as Moab, and devoured the pillars of Arnon.

The Brenton translation of the Septuagint is in the public domain.