Galatians 3:14. “That the blessing of Abraham might come on the Gentiles, through Jesus Christ: that we might receive the promise of the Spirit through faith.”
Why did Jesus Christ become sin for us? Why was He made a curse for us?
He did it so that all nations, not just the Hebrew nation, could receive the blessing of Abraham; the promise of the Spirit.
What was the blessing of Abraham?
Justification with God by faith (Gen. 15:6; Rom. 4; Gal. 3:6-14).
How do we receive that justification? Through the sealing of the promised Holy Spirit Who would come to comfort us in our earthly walk until the day we go to be with the Lord.
Abraham was blessed to be a blessing. We, too, are blessed that we may be a blessing by sharing the good news of Jesus Christ.