Charles Ellicott Commentary Joshua 10:1

"Now it came to pass, when Adoni-zedek king of Jerusalem heard how Joshua had taken Ai, and had utterly destroyed it; as he had done to Jericho and her king, so he had done to Ai and her king; and how the inhabitants of Gibeon had made peace with Israel, and were among them;" — Joshua 10:1 (ASV)

CONQUEST OF THE SOUTHERN CONFEDERACY OF THE NATIONS OF CANAAN.

Adoni-zedec king of Jerusalem. —We may compare this name (Lord of Righteousness) with Melchizedek (King of Righteousness). (See Genesis 14:18 and Hebrews 7:1.) The similarity of the names makes it probable that the Salem of Genesis 14:18 is Jerusalem (see Notes). The title Lord or King of Righteousness may have belonged to the king of Jerusalem, not only as a local title, but also in relation to the surrounding tribes, over whom he may have been a suzerain. But we know nothing of the matter beyond what we find in the sacred text.