Eph 1:3 Blessed be the God and Father of our Lord Jesus Christ, who has blessed us with every spiritual blessing in the heavenly places in Christ,
Paul further writes that we are blessed with every (all) spiritual blessings in the heavenly places in Christ. We are in Christ and He is in us, and any goodness we have is due to our giving room and scope to Him to realize His own ideals. This means a spiritual life drawn from our reinforcements from above.
To be in Christ, abide in Christ, we become partakers of the divine nature (John 15), we are grafted into Christ the True Vine. We are in Him so far as justification is concerned-that is our standing position. And He is in us for sanctification-that is the source of a holy and useful life. The condition of a blessed life is the conscious maintenance of this oneness.
The first and greatest blessing is salvation. Notice how Peter declares it by first calling God blessed, “Blessed be the God and Father of our Lord Jesus Christ! According to his great mercy, he has caused us to be born again to a living hope through the resurrection of Jesus Christ from the dead” (1Pe 1:3).
Peter blesses God who saves and gives living hope through Christ’s suffering, death, burial, and resurrection. With resurrection being the living hope, we are blessed in Christ with eternal life. Paul wants to make it clear that blessings don’t end with salvation but opens doors for all kinds of blessings, there is more.