Genesis 13:18

13:18 So Abram moved his tents and went to live by the oaks of Mamre in Hebron, and he built an altar to the Lord there.

Genesis 26:25

26:25 Then Isaac built an altar there and worshiped the Lord. He pitched his tent there, and his servants dug a well.

Genesis 35:7

35:7 He built an altar there and named the place El Bethel because there God had revealed himself to him when he was fleeing from his brother.