Genesis 12:8

And he removed thence unto. mountain east of Bethel.

He still journeyed, as his immense flocks exhausted the pastures, to the southward, and he pitched his tent between Bethel and Hai. Here, as was the custom of his life, he built an altar, and "called on the name of Jehovah." It will be observed that Lord, in the Hebrew "Jehovah," is the name by which God revealed himself to his chosen people. In an age when idols were called gods, it was needful that the one God should choose some distinctive name. Hence, as far back as the days of Seth the true worshipers "began to call on the name of Jehovah," on the Eternal, the one Eternal God, which the name expresses. See Genesis 4:26.