When Saul was king, the Reuben tribe attacked and defeated the Hagrites, then took over their land east of Gilead.
One day, Sarah noticed Hagar's son Ishmael playing, and she said to Abraham, “Get rid of that Egyptian slave woman and her son! I don't want him to inherit anything. It should all go to my son.”
Ishmael was the son of Abraham and Hagar, the slave woman of Sarah.
These were the men in charge of David's royal property.
Edom and the Ishmaelites; Moab and the Hagrites;
Gebal, Ammon, and Amalek; Philistia and Phoenicia.