Abraham is a very important Character in Bible tales.
Galatians 3:16 God gave the promises to Abraham and his child. And notice that the Scripture doesn't say "to his children," as if it meant many descendants.
Abraham is an outsider who migrated from present Iraq.
He said to Abram, “I am the who led you from Ur of Chaldea. I did this so that I could give you this land. You will own this land.”