New Revised Standard Version
In his days Edom revolted against the rule of Judah, and set up a king of their own.

Contemporary English Version
While Jehoram was king, the people of Edom rebelled and chose their own king.

New American Bible
During Joram’s reign, Edom revolted against the rule of Judah and installed a king of its own.

Douay-Rheims Bible
In his days Edom revolted from being under Juda, and made themselves a king.

In his days Edom revolted from being under Juda, and made themselves a king.

Edom

2 Kings 8:22 So Edom revolted from being under Juda, unto this day. Then Lobna also revolted at the same time.

2 Kings 3:9,27 So the king of Israel, and the king of Juda, and the king of Edom, went, and they fetched a compass of seven days journey, and there was no water for the army, and for the beasts, that followed them. . . .

Genesis 27:40 Shall thy blessing be. Thou shalt live by the sword, and shalt serve thy brother: and the time shall come, when thou shalt shake off and loose his yoke from thy neck.

2 Chronicles 21:8-10 In those days Edom revolted, from being subject to Juda, and made themselves a king. . . .

made a king

2 Samuel 8:14 And he put guards in Edom, and placed there a garrison: and all Edom was made to serve David: and the Lord preserved David in all enterprises he went about.

1 Kings 22:47 And there was then no king appointed in Edom.