Isa 44:3 3 For I will pour water upon him that is thirsty, and floods upon the dry ground: I will pour my spirit upon thy seed, and my blessing upon thine offspring: This Promise is made to Christ and His Seed, His seed being those He died for and Justified, whom He gave His soul an offering for sin for Isa 53:10,11 10 Yet it pleased the Lord to bruise him; he hath put him to grief: when thou shalt make his soul an offering for sin, he shall see his seed, he shall prolong his days, and the pleasure of the Lord shall prosper in his hand. 11 He shall see of the travail of his soul, and shall be satisfied: by his knowledge shall my righteous servant justify many; for he shall bear their iniquities. It is His Seed, the Seed of Christ,His Body the Church that the Promise of Isa 44:3 refers to ! It began to be fulfilled on the Day of Pentecost when the Spirit was poured out upon a jewish remnant of Christ's seed the Church, hence we read this Acts 2:32-33 32 This Jesus hath God raised up, whereof we all are witnesses. 33 Therefore being by the right hand of God exalted, and having received of the Father the promise of the Holy Ghost, he hath shed/poured forth this, which ye now see and hear. The word shed is the greek word ekcheo: I pour out (liquid or solid); I shed, bestow liberally. And its actually the same word pour as in Isa 44:3 3 For I will pour water upon him that is thirsty, and floods upon the dry ground: I will pour my spirit upon thy seed, and my blessing upon thine offspring: Its also the Blessing of Abraham poured out on the Gentile aspect of the Church 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. Its the same Promise of the Spirit as Promised in Isa 44:3 ! Thats because Christ's Seed was also found in the Gentile world, for its a Spiritual Seed ! The Gentile Believers as well as the jewish ones were sealed with the Holy Spirit of Promise Eph 1:13 13 In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise, These here are Christ's Seed that had been Chosen in Him before the foundation Eph 1:3-4 3 Blessed be the God and Father of our Lord Jesus Christ, who hath blessed us with all spiritual blessings in heavenly places in Christ: 4 According as he hath chosen us [His Seed] in him before the foundation of the world, that we should be holy and without blame before him in love: As being among Christ's Chosen Seed, whether jew or Gentile, the Spirit has been Promised unto us Isa 44:3 3 For I will pour water upon him that is thirsty, and floods upon the dry ground: I will pour my spirit upon thy seed, and my blessing upon thine offspring: The jewish remnant had no advantage in this matter over the Gentile remnant, So Peter says of them regarding the Holy Spirit of promise Acts 10:45 And they of the circumcision which believed were astonished, as many as came with Peter, because that on the Gentiles also was poured out the gift of the Holy Ghost Which solidified the fact that Gentiles also had been counted among the Seed/ Offspring of Christ Isa 44:3 3 For I will pour water upon him that is thirsty, and floods upon the dry ground: I will pour my spirit upon thy seed, and my blessing upon thine offspring: Now, The Spirit of Promise was poured out on the jewish remnant of Christ's Seed on Pentecost Acts 2:32-33 and also upon the Gentile Remnant Acts 10:45 ! It was a Gift to the jewish remnant Acts 2:38 and the same Gift was given to the Gentile remnant Acts 10:45 ! Because both were of His Seed ! And the Spirit was Promised to be poured out on His Seed, whom He redeemed !