What does the Bible say about the covenant God made with Abraham?

In Genesis 12:1-4, God called Abraham out from his homeland with the promise of making him a great nation. This covenant is an illustration of the greater covenant of grace made with Christ for the elect, showcasing God's redemptive plan where Abraham is depicted as a type of Christ. The covenant highlights God's faithfulness and unconditioned promise to bless believers, illustrating how through Abraham, all nations will be blessed as Paul notes in Galatians 3:8 that this is central to the gospel.