And Azariah Hebrew, עזריהו, Azaria-hu, distinguished by the last syllable, hu, from the Azariah mentioned in the former clause. Of Jehoshaphat king of Israel So he is called, either, 1st, Because he was so by right: or, 2d, Because he was king not only of Judah and Benjamin, but of a great number of Israelites, who had come and settled in his kingdom.
Related Commentaries of 2 Chronicles 21:2
2 Chronicles 21:2
2 And he had brethren the sons of Jehoshaphat, Azariah, and Jehiel, and Zechariah, and Azariah, and Michael, and Shephatiah: all these were the sons of Jehoshaphat king of Israel.