God's promises to Abram in Genesis center on making him a great nation, blessing him, and making his name famous, ultimately promising that through him, all peoples on Earth would be blessed, involving land, countless descendants like stars/dust, and establishing an everlasting covenant, often solidified through rituals like passing between divided animals. These core promises of a people, land, and universal blessing were confirmed through faith, even as they awaited fulfillment, leading to a lasting relationship with God.
The book of Genesis, meaning "beginning," lays the foundation for the entire Bible, starting with God's creation of the cosmos and humanity from chaos, establishing order, life, and the first human relationship in Eden.