Charles Ellicott Commentary Job 1:3

"His substance also was seven thousand sheep, and three thousand camels, and five hundred yoke of oxen, and five hundred she-asses, and a very great household; so that this man was the greatest of all the children of the east." — Job 1:3 (ASV)

The men of the east. —This term is indefinite with regard to the three districts above mentioned, and might include them all. The Arabs still call the Hauran, or the district east of Jordan, the land of Job. It is said to be a lovely and fertile region, fulfilling the conditions of the poem.