For when David was in Edom, and Joab the captain of the host was gone up to bury them that were slain, he smote all the males in Edom -

he made ships in Eziongeber which is beside Eloth, on the brink of the reed sea, in the land of Edom.

And the LORD stirred up an adversary unto Solomon, one Hadad, an Edomite and of the king's lineage of Edom.

for Joab remained six months, and all Israel, till he had rooted out all the males that were in Edom.

There was then no king in Edom; the king was but a deputy.