When God tells Moses "I am the God of Abraham," it marks the culmination of a profound psychological journey from divine isolation to intimate partnership chronicled in Genesis 12-24. Through the lens of Erik Erikson's developmental framework, the divine-human relationship evolves from initial detachment to deep friendship, reflected in God's shifting self-revelations through names like YHWH, El Elyon, El Shaddai, and YHWH Yireh. Close textual analysis of biblical names and naming practices, supported by biblical commentary, literary criticism, and psychological theory, reveals how God's character development parallels human psychological growth patterns. The transformation becomes evident in pivotal moments: God's renaming of Abram to Abraham, the designation of Abraham as prophet, and ultimately, God's acceptance of the title "God of Abraham." These transitions signify successful navigation of the isolation-versus-intimacy developmental crisis, fundamentally shifting divine presence from transcendent mystery to immanent partnership. By establishing Abraham as the first divine friend and confidant, this psychological evolution creates a new paradigm for divine-human relationships in biblical narrative.