And the children of Ammon, and with them other beside the Ammonites.—This is an attempt to get a reasonable sense out of a corrupted text. What the Heb. says is: And the sons of Ammon, and with them some of the Ammonites. So the Vulg., “et filii Ammon et cum eis de Ammonitis.” Transpose a single Hebrew letter, and there results the intelligible reading: And the sons of Ammon, and with them the Maonites (Heb., Me’ûnîm. See on 1Chronicles 4:41-42.) The Maonites are mentioned again (2Chronicles 26:7) in company with Arabs. They appear to have been a tribe, whose chief seat was Maon, on the eastern slopes of the chain of Mount Seir, after which they are called “sons,” or “inhabitants of Mount Seir” in 2Chronicles 20:10; 2Chronicles 20:22-23. Accordingly Josephus (Ant. ix. 1, § 2) calls them a multitude of Arabs. [The LXX. reads: “And with them some of the Minaioi,” a name which possibly represents the me’înîm of the Heb. text of 1Chronicles 4:41. Syriac, “and with them men of war;” Arabic, “brave men.” Perhaps the expression rendered and with them—we’immahèm—is a relic of an original reading, and the Maonites; and the some of the Ammonites (mēhā’ammônîm) which follows, is merely a gloss on an obscure name by some transcriber].

2Ch 20:1-21. Jehoshaphat, Invaded by the Moabites, Proclaims a Fast.

1. the children of Moab … Ammon, and with them other beside the Ammonites—supposed to be rather the name of a certain people called Mohammonim or Mehunim (2Ch 26:7), who dwelt in Mount Seir—either a branch of the old Edomite race or a separate tribe who were settled there.Several armies come against Judah: Jehoshaphat in his fear proclaimeth a fast, 2 Chronicles 20:1-4. His prayer, 2 Chronicles 20:5-13. Jehaziel’s prophecy, 2 Chronicles 20:14-17. The enemies are overthrown, 2 Chronicles 20:20-25. The people return in triumph, blessing God, 2 Chronicles 20:26-30. His reign: his navy miscarrieth, 2 Chronicles 20:31-37.

Other beside the Ammonites, to wit, the people that dwelt in Mount Seir, who were now confederate with them, as appears from 2 Chronicles 20:10,22,23. Or this is the name of a peculiar people, called either Mehumin, of whom you read 2 Chronicles 26:7 (and so there is only a transposition of two letters in the Hebrew word, which is not unusual in that language); or Minoceans, as the LXX. interpreters render this word; or Ammonium, or Mehaammonim, as it is in the Hebrew, (the two first letters being not prefixes, as they are commonly made, but part of the word or proper name of that people,) who, as it may seem, now dwelt in Mount Seir, being either of the old stock of the Edomites, or another nation since come in their stead or mixed with them. Others render the place thus, for (as the Hebrew vau is oft taken) with them (i.e. with the Moabites) were the Ammonites, or children of Ammon; which may be distinctly noted, either to show the largeness of the confederacy, in which not only the Moabites were engaged, who dwelt near Jehoshaphat’s kingdom, but the Ammonites also, who lived at a greater distance from him; or to intimate that the Ammonites being possibly instigated by the Syrians, their next neighbours, were the first beginners and chief promoters of the war, and engaged both the Moabites and the inhabitants of Mount Seir in their quarrel.

that the children of Moab, and the children of Ammon; both the descendants of Lot, see Psalm 83:8,

and with them other besides the Ammonites; a great company of Arabians, according to Josephus (r); or "with the Meamonites", which the Targum understands of the Idumaeans or Edomites; and so do other interpreters, and which they conclude from 2 Chronicles 20:10. Jarchi thinks the Amalekites are meant, who were of the race of Edom; but the notion of Kimchi seems best, that these are the people that are so called from the name of a place, Meon, and, by an inversion of letters, the same with the Meunim or Maonites, mentioned along with the Zidonians and Amalekites, Judges 10:12 and whom the Septuagint version here calls Minaeans; some (s) take them to be such who counterfeited the Ammonites in their apparel and gestures:

these came against Jehoshaphat in battle; being instigated perhaps by the Syrians, who owed him ill will for assisting Ahab against them at Ramothgilead; for from that quarter they came, as the following verse shows.

(r) Antiqu. l. 9. c. 1. sect. 2.((s) Weemse of the Moral Law, l. 2. c. 6. p. 161.

(a) That is, who copied the Ammonites in language and apparel. The Hebrews thought that they were the Amalekites, but as it appeared by 2Ch 20:10 they were the Idumeans of mount Seir.