Commentaries:
Barnes' Notes
Zerah the Ethiopian is probably Usarken (Osorkon) II, the third king of Egypt after Shishak, according to the Egyptian monuments. Osorkon II may have been by birth an Ethiopian, for he was the son-in-law, not the son, of the preceding monarch, and reigned in right of his wife. The object of the expedition would be to bring Judaea once more under the Egyptian yoke.
An host of a thousand thousand - This is the largest collected army of which we hear in Scripture; but it does not exceed the known numbers of other Oriental armies in ancient times. Darius Codomannus brought into the field at Arbela a force of 1,040, 000; Xerxes crossed into Greece with certainly above a million of combatants.
Other Barnes' Notes entries containing 2 Chronicles 14:9:
1 Kings 15:15
2 Chronicles 17:3
Isaiah 11:11
Micah 1:15
Zechariah 9:13
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