Genesis 12:7-9

Then the LORD appeared to Abram and said, “To your offspring I will give this land.” So he built there an altar to the LORD, who had appeared to him. From there he moved to the hill country on the east of Bethel and pitched his tent, with Bethel on the west and Ai on the east. And there he built an altar to the LORD and called upon the name of the LORD. And Abram journeyed on, still going toward the Negeb.