What was it that imputed righteousness to Abraham, and what was promised through him?
Faith was that which imputed righteousness to Abraham, for as he believed God, so is where we are. Through Abraham, God promised that all the families of the earth would be blessed, pointing to the coming seed and the Redeemer. This promise is tied to the Abrahamic covenant.
Les explains that Paul’s stipulation is that as Abraham believed God, so is where we are, and faith was that which imputed righteousness unto Abraham. Les then ties this to the promise that through Abraham all the families of the earth would be blessed. He builds the Abrahamic covenant on Genesis 3, where God promised a Redeemer through the woman, saying the seed of the woman is Christ, and that through Abraham and his offspring the seed of the woman would come.