This monograph investigates Genesis 12:3 in its context in the final form of Genesis. The author argues that the verse is, first, a promise of security and greatness to Abraham and Israel. However, its position following Genesis 1-11 also indicates a divine plan to extend blessing to all the peoples of the earth. Supporting this understanding of the verse, the author examines the close parallels that Genesis and Numbers 24:9 have to Genesis 12:3. He also presents a detailed consideration of the concept of blessing in the Old Testament and of the niphal and hithpael stems of the verb barak.