God's covenant with Abraham teaches fundamental truths about God's covenant relationships. Through Abraham and Sarah's story, we learn that true covenant requires submission to God's authority, a transformation of identity, and willing sacrifice. These same principles apply to Christians today through the New Covenant in Christ. Genuine covenant relationship produces visible changes in our lives, marked by spiritual fruit and growing submission to God's authority. This transformation involves surrendering our self-focused identity and embracing our identity in Christ.