What is this Blessing of Abraham ?
Gal 3:13-14
13 Christ hath redeemed us from the curse of the law, being made a curse for us: for it is written, Cursed is every one that hangeth on a tree:
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.
Hint, its something stated in this verse that shall happen or come upon the Gentiles through/in Jesus Christ
The Blessing of Abraham is that God through or in Christ, Abraham's Seed Gal 3:16, that the Gentiles might receive upon them, the Promise of the Spirit, for as in Christ they are Abrahams Spiritual Seed.
God gives Abraham a Spiritual Seed, as He did give Him a natural seed, yet this Spiritual Seed is not through being born physically, but being born Spiritually, and by this Birth Spiritually comes the fruit of Faith Gal 5:22 which identifies them as Abraham's Spiritual Seed, that's why we read in Gal 3:7,9
7 Know ye therefore that they which are of faith, the same are the children of Abraham.
9 So then they which be of faith are blessed with faithful Abraham.
We become of Faith because we are Children given to Abraham by the Promise of God.
God Promised Abraham a Seed or that He would multiply him here Gen 17:1-5
And when Abram was ninety years old and nine, the Lord appeared to Abram, and said unto him, I am the Almighty God; walk before me, and be thou perfect.
2 And I will make my covenant between me and thee, and will multiply thee exceedingly.
3 And Abram fell on his face: and God talked with him, saying,
4 As for me, behold, my covenant is with thee, and thou shalt be a father of many nations.
5 Neither shall thy name any more be called Abram, but thy name shall be Abraham; for a father of many nations have I made thee.
Those who are of Faith are part of the Multiplying God promised to Abraham in Vs 2 !
They are found to be amongst the Gentiles from Vs 4-5 , that's how he becomes a Father of many nations, because God has given him a seed or children from the many nations, and so upon them comes the Blessing of Abraham, which is the Spirit in and through Jesus Christ, which seals them and identifies them as Abraham's Spiritual Children promised by God Himself ! God sware this to Abraham Heb 6:13-14
13 For when God made promise to Abraham, because he could swear by no greater, he sware by himself,
14 Saying, Surely blessing I will bless thee, and multiplying I will multiply thee.
This agrees with Gen 17:2
2 And I will make my covenant between me and thee, and will multiply thee exceedingly. and
Gen 22:17-18
17 That in blessing I will bless thee, and in multiplying I will multiply thy seed as the stars of the heaven, and as the sand which is upon the sea shore; and thy seed shall possess the gate of his enemies;
18 And in thy seed shall all the nations of the earth be blessed; because thou hast obeyed my voice.
This Blessing comes through/in Christ Jesus Abrahams Seed, and its the Blessing of the Spirit !
God would give Abraham a Spiritual seed, not born by natural birth, but by a Spiritual birth, which is what Isaacs birth typified by his supernatural birth, opposed to what ishmaels birth typified by his birth by the flesh, one after the Spirit and promise, and one after the flesh and human effort Gal 4:29
29 But as then he that was born after the flesh persecuted him that was born after the Spirit, even so it is now.
And all True Believers, whether jew or Gentile are born after the typical Isaac, the Child of Promise Gal 4:28
28 Now we, brethren[believers in Christ], as Isaac was, are the children of promise.
And have receive the Spirit of Promise through Jesus Christ Gal 3:14
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 or according to the Faith. 8