What does Romans 4:13 mean?
Abraham's relationship with God began with a command and a set of promises. First, God told Abraham to "go" from his country into another land. God promised to make Abraham a great nation, to bless him, to make his name great, to bless those who blessed him and curse those who dishonored him, and to bless all of the families of the earth through Abraham (Genesis 12:1–3). Did Abraham believe all these promises from God? He clearly did, because the verse after this list of promises says, "So Abram went" (Genesis 12:4).Paul seems to be referring to these promises when he mentions that God told Abraham that he and his descendants would be heirs of the world. Paul's point is that the promises had nothing to do with the giving of or Israel's keeping of the law. God made the promises centuries before giving the law to Moses. Instead, these promises were given through the righteousness of Abraham's faith.