The promise is the Abraham covenant. And from God’s eternal perspective, He’s fulfilled His covenant agreement, He’s already commanded His blessing. Genesis 12:2-3 (AMP) I will make of you a great nation, and I will bless you with abundant increase of favors and make your name famous and distinguished, and you will be a blessing, dispensing good to others. And I will bless those who bless you, who confer prosperity or happiness upon you and curse him who curses or uses insolent language toward you; in you will all the families and kindred of the earth be blessed and by you they will bless themselves.