Abram, when he reached Shechem, built an altar and "called upon the name of Yahweh". According to many scholars, the patriarchs used the name "El Shaddai" as the name of God. They argue that the name of Yahweh was not known before the time of Moses, and so Genesis 12:8 does not portray the true reality. The purpose of this study is to give some reasons for thinking that the author of Genesis 12 rightly used the name Yahweh.