Obedience to the first command to Go forth is followed by three divine promises ("I will" statements). Make you a great nation - fulfilled in the nation of Israel which has endured even to our day! Included in ths blessing was the land (Ge 12:7). Bless you - Abram experienced temporal blessing (even when he did not deserve it - Ge 12:16) and spiritual well-being ("The friend of God" -Jas 2:23+). Make your name great - Jews, Christians, and Moslems all look to Abraham as the father of their faith.