Bible Dictionary
UR OF THE CHALDEES
Ur of the Chaldees was the homeland from which Terah and Abraham departed. It is traditionally identified with a city in southern Babylonia, though the precise location has been debated; Scripture places Abraham’s early homeland in Mesopotamia.
Biblical Usage
Stephen places Ur in Mesopotamia and connects it with Abraham’s departure. The designation “of the Chaldees” distinguishes the place in relation to the region called Chaldea.