Chronicles II 21:11

11 For he built high places in the cities of Juda, and caused the dwellers in Jerusalem to go a-whoring, and led Juda astray.

Chronicles II 21:11 Meaning and Commentary

2 Chronicles 21:11

Moreover, he made high places in the mountains of Judah
Temples and altars for idols, which, being built on mountains, had the name of high places; and these Jehoram made or rebuilt were those which had been pulled down by Asa and Jehoshaphat: and caused the inhabitants of Jerusalem to commit fornication;
that is, idolatry, drawing them by his own example to worship Baal, for he did what Ahab and his family did, ( 2 Chronicles 21:6 ) , and compelled Judah thereto; the inhabitants of Jerusalem falling into the same idolatrous practice with him, he forced the inhabitants of the cities, and in the country, to do the same, who it seems were not so willing and ready to comply therewith.

Chronicles II 21:11 In-Context

9 And Joram went with the princes, and all the cavalry with him: and it came to pass that he arose by night, and smote Edom that compassed him about, and the captains of the chariots, and the people fled to their tents.
10 And Edom revolted from Juda until this day. Then Lomna at that time revolted from his hand, because he forsook the Lord God of his fathers.
11 For he built high places in the cities of Juda, and caused the dwellers in Jerusalem to go a-whoring, and led Juda astray.
12 And there came to him in writing from Eliu the prophet, saying, Thus saith the Lord God of thy father David, Because thou hast not walked in the way of thy father Josaphat, nor in the ways of Asa king of Juda,
13 but hast walked in the ways of the kings of Israel, and hast caused Juda and the dwellers in Jerusalem to go a-whoring, as the house of Achaab caused to go a-whoring, and thou hast slain thy brethren, the sons of thy father, who were better than thyself;

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