Easter is all about what Jesus did to save us from sin, right? Kind of. Easter only makes sense when understood as the united action of the Trinity in the drama of redemption. It was the one God who is Father, Son and Holy Spirit who determined that Easter would happen in order to save his people, chosen by the Trinity before the foundation of the world. They were chosen, not on the basis of foreseen faith or works, but simply because they were loved by Father, Son and Holy Spirit, who wanted to draw lost sinners into the warmth of their embrace. In eternity the Father gave this elect people to his Son, appointed him as their Saviour, gifted him with the Holy Spirit for the work of redemption and promised him glory on its accomplishment.
The Father sent his Son into the world as Man, born of Mary by the power of the Holy Spirit. The Father upheld, taught and guided his incarnate Son by the Spirit and enabled him to live a life of righteous obedience on behalf of his chosen people. At the cross Christ offered himself up to God through the eternal Spirit to atone for our sins, in order that we might be justified, reconciled to God and set apart as his holy people. Through the Spirit of holiness the Father gave Jesus power to lay down his life and power to take it again. And so he arose on the third day according to the Scriptures and was appointed the Son of God with power. At his resurrection Jesus, the last Adam became a life-giving Spirit who bestows life, glory and immortality upon God's new humanity.
The Father applies the salvation accomplished at Easter upon his chosen people by uniting them to Christ by his Spirit. In Christ sinners die to the old life of sin and are raised to a new life of holiness, they are justified by faith alone and given grace to persevere to the end by the empowering presence of the Spirit. The Spirit of God who raised Jesus from the dead will also give resurrection life to the mortal bodies of his people. And so God's chosen people will be raised with incorruptible spiritual bodies, conformed to the image of his Son and be made partakers of the divine nature. They will live in the new creation in the presence of their Saviour God; Father, Son and Holy Spirit, and experience the intensity of his loving communicative action for all eternity.
Thank the Trinity for Easter!