How does the Covenant of Redemption work?

The Covenant of Redemption refers to the intra-Trinitarian agreement before the foundation of the world, where the Father, Son, and Holy Spirit decided to redeem a people for Himself. This is distinctly illustrated in passages like Ephesians 1, where we see God the Father purposing salvation, God the Son accomplishing salvation through His death, and God the Holy Spirit applying that salvation to the hearts of the elect. Each person of the Trinity plays a vital role, reflecting the sovereign nature of God's redemptive plan through history. The Covenant of Redemption assures believers that their salvation was both planned and executed with divine authority and truth, highlighting the sovereignty of God in the salvation of His people.